arcio: In /home/USER NAME/.config/unity3d/Playtonic Ltd/Yooka-Laylee Player.log i have
Fallback handler could not load library /home/USER NAME/GOG Games/Yooka Laylee/game/YookaLaylee_Data/Mono/x86_64/data-0x9033390.so
Fallback handler could not load library /home/USER NAME/GOG Games/Yooka Laylee/game/YookaLaylee_Data/Mono/x86_64/libudev.so.0
Fallback handler could not load library /home/USER NAME/GOG Games/Yooka Laylee/game/YookaLaylee_Data/Mono/x86_64/libudev.so.0.so
Couldn't open /home/USER NAME/GOG Games/Yooka Laylee/game/YookaLaylee_Data/Plugins/x86_64/libAkSoundEngine.so, error: lib64/libSDL2-2.0.so.0: file too short
Fallback handler could not load library /home/USER NAME/GOG Games/Yooka Laylee/game/YookaLaylee_Data/Mono/x86_64/.//home/arek/GOG Games/Yooka Laylee/game/YookaLaylee_Data/Plugins/x86_64/libAkSoundEngine.so
THIS GAME HAS BECOME A GARBAGE.
the game now works on linux mint, both the sound issue and the stuck on loading screen issue have been resolved, please see this gog forums: