Trails in the Sky SC has stopped launching for me for some reason - It will try to open in the GOG Galaxy Client, and then after a moment the "syncing" message will pop up in the client showing that it's closed. However, it's not giving a message that it crashed. Running the game as Admin doesn't seem to fix it either.

I'm not even seeing anything in Event Viewer.

Computer is running Windows 11.
Processor is an i5-9600K
Video card is a GTX 1660 Ti.

Any idea as to what could be causing this?

So, I may have found a possible solution - setting compatibility mode to Windows 8 for the game appears to have recovered the issue for now. I'll have to play it for a few sessions to make sure it sticks.

I've needed to disable the Galaxy overlay for the game, otherwise it will not launch consistently in either DirectX9 or DirectX8 mode. Sometimes it works with overlay enbled, sometimes it doesn't, (Overlay doesn't even work in DX9 mode) My theory is the Galaxy overlay is trying to load itself prior to the game, which makes it crash. This could be easily solvable if GOG allowed for the overlay injection to be delayed, similar to MSI Afterburner/RivaTuner.