I'm facing an issue since I'm moved to Windows 11 (but I had it during quite some times on windows 10, then it was fixed (not sure if it was fixed after a windows update or a spotify update)).
Everytime my monitors wakes up from "sleep" (not windows standby, it's only my monitors) then I can't use Spotify anymore, it's just frozen and I can't do anything with it. If I close it, when I want to open it again, I'm getting a message like it's already running. When I check the task manager, I have multiple Spotify.exe running and need to close all of them by hands, and then I can restart Spotify and use it.
Because I just restart it, I will post an update with a screenshot later to show you how it looks when it's bugged.