Linux host seamless mode with windows 10 guest often don't display anything

[test111]

I installed windows 10 as a guest and run a few apps using seamless-mode but it won't work quite often (no error or anything.. it just doesn't display anything of the vm in seamless when it doesn't work). I think the issue first appears after restoring from a snapshot (save machine state) instead of rebooting, but a reboot doesn't fix it. after some time (a few reboots of host and guest it "randomly" works again but I can reproduce it very often..).

I already tried all Display / Graphics settings on the vm.

the issue happens on both KDE and XFCE. I currently use the version from the ubuntu repos: 6.1.26 but I also tried with 6.1.30 and the same issue occurs.