For me 21.2.1 has been incrediably unstable :(. I can almost consistently crash it now. Here's what I am seeing more often than not.
When I open a DNG from Lightroom Classic it will open, but there is an odd mystery "progess" dialog that shows up. There are no buttons on it, and the image is open behind it already.
How it looks deselected:
And selected:
The dialog will go behind photoshop as well, it's not modal. Here's what it looks like in expose mode.
I can't close the dialog by clicking 'cancel' on it, but I can hit cmd-w with it selected and it will disappear. However as soon as I do anything to the image after (make a path with the lasso tool, or even save it) PS just crashes.
Note: It seems like this might be related to photoshop not being the front window when the image is opened. The odd progress dialog seems to show up when photoshop's in the background when the image is opened, but if I hit cmd-e from lightroom, switch to photoshop, it then seems to be (more) ok.
Not sure if it's related, but when it restarts after, the new "home screen" shows up, even if I have reset the preferences to not show it.
I reverted back to the previous version, but that lost all my preferences and plugin setups, and had other issues.
Is this something known, or does anyone from Adobe think they can help me out here?