I was referred here by someone from my topic Blank Window at Startup - Manager Desktop for Linux but I suspect this may be a different problem. But since some of the posts here reference webkit2gtk I thought I’d check and see if related. Latest LinuxMint updates broke Manager and one of them is webkit2gtk. I can roll back latest updates and everything works again. I just posted the complete list of updates that occurred the day it broke Manager on the other thread.
I’m running the latest appimage of Manager - 23.10.12.1043