{"action":"reopened","issue":{"url":"https://api.github.com/repos/spotify/luigi/issues/1364","labels_url":"https://api.github.com/repos/spotify/luigi/issues/1364/labels{/name}","comments_url":"https://api.github.com/repos/spotify/luigi/issues/1364/comments","events_url":"https://api.github.com/repos/spotify/luigi/issues/1364/events","html_url":"https://github.com/spotify/luigi/issues/1364","id":114083723,"number":1364,"title":"Dependency graph fails sometimes","user":{"login":"Massou31","id":1401207,"avatar_url":"https://avatars.githubusercontent.com/u/1401207?v=3","gravatar_id":"","url":"https://api.github.com/users/Massou31","html_url":"https://github.com/Massou31","followers_url":"https://api.github.com/users/Massou31/followers","following_url":"https://api.github.com/users/Massou31/following{/other_user}","gists_url":"https://api.github.com/users/Massou31/gists{/gist_id}","starred_url":"https://api.github.com/users/Massou31/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Massou31/subscriptions","organizations_url":"https://api.github.com/users/Massou31/orgs","repos_url":"https://api.github.com/users/Massou31/repos","events_url":"https://api.github.com/users/Massou31/events{/privacy}","received_events_url":"https://api.github.com/users/Massou31/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-10-29T16:04:49Z","updated_at":"2015-11-17T10:56:04Z","closed_at":null,"body":"hi,\r\nWith luigi 2.0.0, sometimes the task dependency graph fails to display with errors like:\r\n```Couldn't find task DailyBiWorkflow(executor=all,%20date=2015-09-12,%20with_sftp_upload=False,%20with_reconciliation_analyse=False)```\r\n\r\nThere are no errors in luigi logs.\r\nI think this may be caused by a failure in the urlencode but I have not investigated in it yet.\r\n\r\nis there some parameters to luigi task that may cause this bug (to long strings, python objects, ...)?"}}