diff --git a/pyiron_base/database/filetable.py b/pyiron_base/database/filetable.py
index 2c44d0ed..e2c7bec5 100644
--- a/pyiron_base/database/filetable.py
+++ b/pyiron_base/database/filetable.py
@@ -534,9 +534,15 @@ class FileTable(IsDatabase, metaclass=FileTableSingleton):
                     )
                 ]
             )
+            sanitized_paths = self._fileindex.dataframe.path.str.replace("\\", "/")
+            # The files_list is generated using project path values
+            # In pyiron, these are all forced to be posix-like with /
+            # But _fileindex is of type PyFileIndex, which does _not_ modify paths
+            # so to get the two compatible for an isin check, we need to sanitize the
+            # _fileindex.dataframe.path results
             df_new = self._fileindex.dataframe[
                 ~self._fileindex.dataframe.is_directory
-                & ~self._fileindex.dataframe.path.isin(files_lst)
+                & ~sanitized_paths.isin(files_lst)
             ]
         else:
             files_lst, working_dir_lst = [], []
@@ -565,7 +571,11 @@ class FileTable(IsDatabase, metaclass=FileTableSingleton):
                 "status": get_job_status_from_file(hdf5_file=path, job_name=job),
                 "job": job,
                 "subjob": "/" + job,
-                "project": os.path.dirname(path) + "/",
+                "project": os.path.dirname(path).replace("\\", "/") + "/",
+                # pyiron Project paths are forced to be posix-like with / instead of \
+                # in order for the contains and endswith tests down in _get_job_table
+                # to work on windows, we need to make sure that the file table obeys
+                # this conversion
                 "timestart": time,
                 "timestop": time,
                 "totalcputime": 0.0,
diff --git a/pyiron_base/jobs/datamining.py b/pyiron_base/jobs/datamining.py
index 9906b525..27cc533e 100644
--- a/pyiron_base/jobs/datamining.py
+++ b/pyiron_base/jobs/datamining.py
@@ -683,14 +683,19 @@ class TableJob(GenericJob):
         with self.project_hdf5.open("input") as hdf5_input:
             if "project" in hdf5_input.list_nodes():
                 project_dict = hdf5_input["project"]
-                project = self.project.__class__(
-                    path=project_dict["path"],
-                    user=project_dict["user"],
-                    sql_query=project_dict["sql_query"],
-                )
-                project._filter = project_dict["filter"]
-                project._inspect_mode = project_dict["inspect_mode"]
-                self.analysis_project = project
+                if os.path.exists(project_dict["path"]):
+                    project = self.project.__class__(
+                        path=project_dict["path"],
+                        user=project_dict["user"],
+                        sql_query=project_dict["sql_query"],
+                    )
+                    project._filter = project_dict["filter"]
+                    project._inspect_mode = project_dict["inspect_mode"]
+                    self.analysis_project = project
+                else:
+                    self._logger.warning(
+                        f"Could not instantiate analysis_project, no such path {project_dict['path']}."
+                    )
             if "filter" in hdf5_input.list_nodes():
                 if hdf_version == "0.1.0":
                     self.pyiron_table._filter_function_str = hdf5_input["filter"]
diff --git a/pyiron_base/jobs/job/extension/server/runmode.py b/pyiron_base/jobs/job/extension/server/runmode.py
index f9b3bed6..1854b227 100644
--- a/pyiron_base/jobs/job/extension/server/runmode.py
+++ b/pyiron_base/jobs/job/extension/server/runmode.py
@@ -26,7 +26,6 @@ run_mode_lst = [
     "thread",
     "worker",
     "srun",
-    "flux",
     "interactive",
     "interactive_non_modal",
 ]
diff --git a/pyiron_base/jobs/job/generic.py b/pyiron_base/jobs/job/generic.py
index b7f690cb..978801e7 100644
--- a/pyiron_base/jobs/job/generic.py
+++ b/pyiron_base/jobs/job/generic.py
@@ -154,7 +154,6 @@ class GenericJob(JobCore):
         self._compress_by_default = False
         self._python_only_job = False
         self._write_work_dir_warnings = True
-        self._flux_executor = None
         self.interactive_cache = None
         self.error = GenericError(job=self)
 
@@ -210,15 +209,6 @@ class GenericJob(JobCore):
         self._executable_activate()
         self._executable.executable_path = exe
 
-    @property
-    def flux_executor(self):
-        return self._flux_executor
-
-    @flux_executor.setter
-    def flux_executor(self, exe):
-        self.server.run_mode.flux = True
-        self._flux_executor = exe
-
     @property
     def server(self):
         """
@@ -700,9 +690,9 @@ class GenericJob(JobCore):
                 if repair and self.job_id and not self.status.finished:
                     self._run_if_repair()
                 elif status == "initialized":
-                    return self._run_if_new(debug=debug)
+                    self._run_if_new(debug=debug)
                 elif status == "created":
-                    return self._run_if_created()
+                    self._run_if_created()
                 elif status == "submitted":
                     run_job_with_status_submitted(job=self)
                 elif status == "running":
@@ -1201,7 +1191,7 @@ class GenericJob(JobCore):
         Args:
             debug (bool): Debug Mode
         """
-        return run_job_with_status_initialized(job=self, debug=debug)
+        run_job_with_status_initialized(job=self, debug=debug)
 
     def _run_if_created(self):
         """
diff --git a/pyiron_base/jobs/job/runfunction.py b/pyiron_base/jobs/job/runfunction.py
index 80274024..895e738c 100644
--- a/pyiron_base/jobs/job/runfunction.py
+++ b/pyiron_base/jobs/job/runfunction.py
@@ -7,19 +7,10 @@ import os
 import posixpath
 import subprocess
 
-from jinja2 import Template
-
 from pyiron_base.utils.deprecate import deprecate
 from pyiron_base.jobs.job.wrapper import JobWrapper
 from pyiron_base.state import state
 
-try:
-    import flux.job
-
-    flux_available = True
-except ImportError:
-    flux_available = False
-
 
 """
 The function job.run() inside pyiron is executed differently depending on the status of the job object. This module 
@@ -48,7 +39,6 @@ of the server object attached to the job object: job.server.run_mode
     interactive_non_modal: run_job_with_runmode_interactive_non_modal
     queue: run_job_with_runmode_queue
     srun: run_job_with_runmode_srun
-    flux: run_job_with_runmode_flux
     thread: only affects children of a GenericMaster 
     worker: only affects children of a GenericMaster 
     
@@ -86,7 +76,7 @@ def run_job_with_status_initialized(job, debug=False):
         print("job exists already and therefore was not created!")
     else:
         job.save()
-        return job.run()
+        job.run()
 
 
 def run_job_with_status_created(job):
@@ -112,16 +102,6 @@ def run_job_with_status_created(job):
         job.run_static()
     elif job.server.run_mode.srun:
         run_job_with_runmode_srun(job=job)
-    elif job.server.run_mode.flux:
-        if job.server.gpus is not None:
-            gpus_per_slot = int(job.server.gpus / job.server.cores)
-        else:
-            gpus_per_slot = None
-        return run_job_with_runmode_flux(
-            job=job,
-            executor=job.flux_executor,
-            gpus_per_slot=gpus_per_slot,
-        )
     elif (
         job.server.run_mode.non_modal
         or job.server.run_mode.thread
@@ -451,53 +431,6 @@ def run_job_with_runmode_srun(job):
     )
 
 
-def run_job_with_runmode_flux(job, executor, gpus_per_slot=None):
-    if not flux_available:
-        raise ModuleNotFoundError(
-            "No module named 'flux'. Running in flux mode is only available on Linux;"
-            "For CPU jobs, please use `conda install -c conda-forge flux-core`; for "
-            "GPU support you will additionally need "
-            "`conda install -c conda-forge flux-sched libhwloc=*=cuda*`"
-        )
-    if not state.database.database_is_disabled:
-        executable_template = Template(
-            """\
-#!/bin/bash
-python -m pyiron_base.cli wrapper -p {{working_directory}} -j {{job_id}}
-"""
-        )
-        exeuctable_str = executable_template.render(
-            working_directory=job.working_directory,
-            job_id=str(job.job_id),
-        )
-        job_name = "pi_" + str(job.job_id)
-    else:
-        executable_template = Template(
-            """\
-#!/bin/bash
-python -m pyiron_base.cli wrapper -p {{working_directory}} -f {{file_name}}{{h5_path}}
-"""
-        )
-        exeuctable_str = executable_template.render(
-            working_directory=job.working_directory,
-            file_name=job.project_hdf5.file_name,
-            h5_path=job.project_hdf5.h5_path,
-        )
-        job_name = "pi_" + job.job_name
-
-    jobspec = flux.job.JobspecV1.from_batch_command(
-        jobname=job_name,
-        script=exeuctable_str,
-        num_nodes=1,
-        cores_per_slot=1,
-        gpus_per_slot=gpus_per_slot,
-        num_slots=job.server.cores,
-    )
-    jobspec.cwd = job.project_hdf5.working_directory
-    jobspec.environment = dict(os.environ)
-    return executor.submit(jobspec)
-
-
 def run_time_decorator(func):
     def wrapper(job):
         if not state.database.database_is_disabled and job.job_id is not None:
diff --git a/pyiron_base/project/maintenance.py b/pyiron_base/project/maintenance.py
index d0232688..fa5c34bf 100644
--- a/pyiron_base/project/maintenance.py
+++ b/pyiron_base/project/maintenance.py
@@ -99,7 +99,7 @@ class LocalMaintenance:
             recursive=recursive, progress=progress, convert_to_object=False, **kwargs
         ):
             hdf = job.project_hdf5
-            hdf.rewrite_hdf(job.name)
+            hdf.rewrite_hdf5(job.name)
 
 
 class UpdateMaintenance:
@@ -119,9 +119,9 @@ class UpdateMaintenance:
                 configuration.
         """
         mayor, minor = start_version.split(".")[0:2]
-        if mayor != 0:
+        if int(mayor) != 0:
             raise ValueError("Updates to version >0.x.y is not possible.")
-        if minor < 4:
+        if int(minor) < 4:
             self.base_v0_3_to_v0_4(project)
 
     def base_v0_3_to_v0_4(self, project=None):

diff --git a/tests/database/test_filetable.py b/tests/database/test_filetable.py
index bdc04834..d95c182c 100644
--- a/tests/database/test_filetable.py
+++ b/tests/database/test_filetable.py
@@ -6,9 +6,10 @@ from os import mkdir, rmdir
 from os.path import abspath, dirname, join
 from time import time
 
-from pyiron_base._tests import PyironTestCase
+from pyiron_base._tests import PyironTestCase, ToyJob
 
 from pyiron_base.database.filetable import FileTable
+from pyiron_base.project.generic import Project
 
 
 class TestFileTable(PyironTestCase):
@@ -60,3 +61,30 @@ class TestFileTable(PyironTestCase):
             ft is another_ft,
             msg="New paths should create new FileTable instances"
         )
+
+    def test_job_table(self):
+        pr = Project(dirname(__file__) + "test_filetable_test_job_table")
+        job = pr.create_job(job_type=ToyJob, job_name="toy_1")
+        job.run()
+        self.assertEqual(len(pr.job_table()), 1)
+
+        with self.subTest("Check if the file table can see the job and see it once"):
+            ft = FileTable(index_from=pr.path)
+            self.assertEqual(
+                len(pr.job_table()),
+                len(ft._job_table),
+                msg="We expect to see exactly the same job(s) that is in the project's "
+                    "database job table"
+            )
+
+            ft.update()
+            self.assertEqual(
+                len(pr.job_table()),
+                len(ft._job_table),
+                msg="update is called in each _get_job_table call, and if path "
+                    "comparisons fail -- e.g. because you're on windows but pyiron "
+                    "Projects force all the paths to use \\ instead of /, then the "
+                    "update can (and was before the PR where this test got added) "
+                    "duplicate jobs in the job table."
+            )
+        pr.remove_jobs(recursive=True, progress=False, silently=True)
diff --git a/tests/project/test_maintenance.py b/tests/project/test_maintenance.py
new file mode 100644
index 00000000..ad08d3f6
--- /dev/null
+++ b/tests/project/test_maintenance.py
@@ -0,0 +1,74 @@
+import numpy as np
+from pyiron_base._tests import TestWithFilledProject
+from pyiron_base import GenericJob
+
+
+def _test_array(start=0):
+    return np.arange(start, start + 100, dtype=object).reshape(5, 20)
+
+
+class TestMaintenance(TestWithFilledProject):
+    def setUp(self) -> None:
+        super().setUp()
+        job: GenericJob = self.project["toy_1"]
+        job["user/some"] = _test_array(5)
+        job["user/some"] = _test_array()
+        self.initial_toy_1_hdf_file_size = job.project_hdf5.file_size(job.project_hdf5)
+
+    def _assert_setup(self):
+        job_hdf = self.project["toy_1"].project_hdf5
+        array = self.project["toy_1/user/some"]
+        self.assertEqual(array, _test_array())
+        self.assertAlmostEqual(
+            job_hdf.file_size(job_hdf), self.initial_toy_1_hdf_file_size
+        )
+
+    def _assert_hdf_rewrite(self):
+        job_hdf = self.project["toy_1"].project_hdf5
+        array = self.project["toy_1/user/some"]
+        self.assertEqual(array, _test_array())
+        self.assertLess(job_hdf.file_size(job_hdf), self.initial_toy_1_hdf_file_size)
+
+    def test_repository_status(self):
+        df = self.project.maintenance.get_repository_status()
+        self.assertIn(
+            "pyiron_base",
+            df.Module.values,
+            "Environment dependent, but pyiron_base should be in there!",
+        )
+
+    def test_local_defragment_storage(self):
+        self._assert_setup()
+        self.project.maintenance.local.defragment_storage()
+        self._assert_hdf_rewrite()
+
+    def test_update_base_to_current(self):
+        self._assert_setup()
+
+        with self.subTest("Version bigger 0"):
+            with self.assertRaises(ValueError):
+                self.project.maintenance.update.base_to_current("1.0.2")
+                self._assert_setup()
+
+        with self.subTest(msg="Version not smaller 4, no action expected!"):
+            self.project.maintenance.update.base_to_current("0.4.3")
+            self._assert_setup()
+
+        with self.subTest(msg="Version < 0.4: should run"):
+            self.project.maintenance.update.base_to_current("0.3.999")
+            self._assert_hdf_rewrite()
+
+    def test_update_v03_to_v04_None(self):
+        self._assert_setup()
+        self.project.maintenance.update.base_v0_3_to_v0_4()
+        self._assert_hdf_rewrite()
+
+    def test_update_v03_to_v04_self(self):
+        self._assert_setup()
+        self.project.maintenance.update.base_v0_3_to_v0_4(project=self.project)
+        self._assert_hdf_rewrite()
+
+    def test_update_v03_to_v04_str(self):
+        self._assert_setup()
+        self.project.maintenance.update.base_v0_3_to_v0_4(project=self.project.path)
+        self._assert_hdf_rewrite()
diff --git a/tests/table/test_datamining.py b/tests/table/test_datamining.py
index 3d99c843..76e33bf0 100644
--- a/tests/table/test_datamining.py
+++ b/tests/table/test_datamining.py
@@ -5,8 +5,10 @@
 import unittest
 import numpy as np
 
+import pyiron_base
 from pyiron_base._tests import TestWithProject, ToyJob
 
+
 class TestProjectData(TestWithProject):
 
     @classmethod
@@ -21,7 +23,7 @@ class TestProjectData(TestWithProject):
 
     def setUp(self):
         super().setUp()
-        self.table = self.project.create.table('test_table')
+        self.table: pyiron_base.TableJob = self.project.create.table('test_table')
         self.table.filter_function = lambda j: j.name in ["test_a", "test_b"]
         self.table.add['name'] = lambda j: j.name
         self.table.add['array'] = lambda j: np.arange(8)
@@ -30,6 +32,10 @@ class TestProjectData(TestWithProject):
     def tearDown(self):
         self.project.remove_job(self.table.name)
 
+    def test_analysis_project(self):
+        self.assertIs(self.project, self.table.analysis_project)
+        self.assertEqual(self.project.path, self.project.load(self.table.name).analysis_project.path)
+
     def test_filter(self):
         """Filter functions should restrict jobs included in the table."""
 

table job of packed Project fails to load data
I just stubbled across an unintended behavior for table jobs which have been `pack`ed and are now tried to be loaded in completely different environment (e.g. binder) without access to the original analysis project (not even the path can be build..., which causes the error in my case). I suggest to check if the project paths exists before trying to make a `Project` there...

https://github.com/pyiron/pyiron_base/blob/0b6399ddad6ab4a734282b08ac8e024bebd973f4/pyiron_base/jobs/datamining.py#L684-L693
tests/project/test_maintenance.py::TestMaintenance::test_local_defragment_storage tests/project/test_maintenance.py::TestMaintenance::test_update_base_to_current
tests/database/test_filetable.py::TestFileTable::test_docstrings tests/database/test_filetable.py::TestFileTable::test_job_table tests/database/test_filetable.py::TestFileTable::test_re_initialization tests/project/test_maintenance.py::TestMaintenance::test_docstrings tests/project/test_maintenance.py::TestMaintenance::test_repository_status tests/project/test_maintenance.py::TestMaintenance::test_update_v03_to_v04_None tests/project/test_maintenance.py::TestMaintenance::test_update_v03_to_v04_self tests/project/test_maintenance.py::TestMaintenance::test_update_v03_to_v04_str tests/table/test_datamining.py::TestProjectData::test_analysis_project tests/table/test_datamining.py::TestProjectData::test_docstrings tests/table/test_datamining.py::TestProjectData::test_filter tests/table/test_datamining.py::TestProjectData::test_filter_reload tests/table/test_datamining.py::TestProjectData::test_numpy_reload