Editor UI becomes unusable.

The editor UI becomes unusable. Clicks do not happen.
Can't save or open any menu, change any value, or even exit the editor.
The only way to exit Unity is by using the Task Manager.

The same was happening to Beta 5 but at least you could exit Unity.
In Beta 8 you can't even do that.

Errors such as this one flood the console:

MissingReferenceException: The object of type 'ContainerWindow' has been destroyed but you are still trying to access it.
Your script should either check if it is null or you should not destroy the object.
UnityEditor.ContainerWindow.Save () (at <dbec13b8891f4cb392de8ec34da2cbaf>:0)
UnityEditor.ContainerWindow.Close () (at <dbec13b8891f4cb392de8ec34da2cbaf>:0)
UnityEditor.TooltipView.ForceClose () (at <dbec13b8891f4cb392de8ec34da2cbaf>:0)
UnityEditor.TooltipView.Update () (at <dbec13b8891f4cb392de8ec34da2cbaf>:0)
UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at <dbec13b8891f4cb392de8ec34da2cbaf>:0)

I don't get those errors however the editor is unusable in game mode by dropping to 1 fps. It was definitely caused by "upgrade" to 2022.2. I had to "upgrade" to this version because 2022.1 introduced another game breaking bug in my project! Now I am stuck in "upgrade" loop which ruins my project even more with each iteration.

For the reference, this lag is caused by "Semaphore.WaitForSignal" which gives 2000ms+ constant (no spikes) lag when selecting object while in game view.

Any info on when this is resolved? Editor is unusable in this beta.

If this issue still happens in the latest beta, please report a bug through the bug reporter so we have all the info that is needed to fix the issue. Thank you.

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This happens to me. Particularly when trying to modify values on lights such as directional lights. This happens even if I create a blank HDRP project in 2022.2.0b16.

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