I use Nik Collection as a plugin in both DxO PhotoLab (most of the time) and an old version of Photoshop Elements (Version 14) which I mostly only use now for stitching panoramas (I could do without it altogether if DxO provided a stitching app).
I updated Nik to version 4.3.4 on 30 April and now when I try to open Photoshop Elements, it crashes within a few seconds before I can do anything. I’ve tried rebooting the PC several times to no avail. Ditto opening PSE without anything else running - it still crashes. I’m running Windows 10 and not aware of any Windows updates since I last used PSE that might be causing the problem. So I wonder if the new version of Nik Collection is clashing in some way with my ancient (c.2014) edition of PSE - it’s been pretty reliable up to now.
Next time a new version of Nik is offered I’ll uncheck the plugin for PSE to see if that makes a difference - I don’t really need to be able to open it in PSE anymore but don’t know how to remove it as a plugin from PSE given that I can’t keep it open for more than about 5 seconds and therefore can’t access its settings.