I was messing around with some custom material expressions and afterwards I noticed that the editor viewports seemed dimmer than usual. Closer inspection revealed that also AA and almost all post processing effects (e.g. motion blur) weren’t visible anymore. I checked the viewport settings and made sure that all post processing effects were enabled and restarted the editor twice and also removed the object using a custom material expression, but the problem persists.
In standalone export everything renders correctly. Is this an editor bug?