I’ve tested a Huion Kamvas and disabling Wintab fixed the problem: unchecking “Edit > Preferences > Experimental > Load wintab32 library” and restarting Aseprite: Aseprite - Docs - Wintab
I’ve tested a Huion Kamvas and disabling Wintab fixed the problem: unchecking “Edit > Preferences > Experimental > Load wintab32 library” and restarting Aseprite: Aseprite - Docs - Wintab