I was having difficulties with Deskscapes 11 Beta under Windows 11 22H2 (OS Build 22581.200) on a three monitor system where multiple instances of DSHost Application were created during a slideshow playlist. Starts out with 3 instances (one for each monitor I imagine) and then from there, any time the images change according to the playlist settings, it would spawn another extra instance. This continued ad infinitum.
FYI, I was able to mitigate the problem by manually setting the the scale factor under Settings > Display > Scale and then setting the scale manually to 100 (100%). You'll then have to log out and when you log back in, the DSHost multiple instance problem should be gone, as should any other problems related to scaling and monitor flicker.
I hope this helps lead the developers towards a solution to this and any other related problems.
Thank you. Great application, I'm really enjoying it!