Can't open dev menu via CMD+D or reload via CMD+R any longer
<p>I can't open my dev menu via CMD+D or reload via CMD+R any longer. It just stopped working without me knowingly changing something. </p>

<p>Some more info:</p>

<ul>
<li>Shake gesture still works, but not always</li>
<li>Live reload works only when shake gesture is working</li>
<li>Independent of build via <code>react-native run-ios</code> or via xCode</li>
<li>rn22.0 and rn23.0-rc</li>
<li>same behaviour upon <code>react-native init newProject</code> </li>
<li>I use the workspace file</li>
</ul>

<p>What I have tried to fix it: </p>

<ul>
<li>tried other simulators</li>
<li>downgrade/upgrades by a version</li>
<li>ran <code>react-native upgrade</code> and said <code>yes</code> to every overwrite</li>
<li>complete reinstall of all NPM modules</li>
<li>Reset the simulator</li>
<li>clean build</li>
<li>reboot</li>
</ul>