(11-29-2021, 04:04 PM)Keith Wrote: I don't have any of those things and it's still not working. I used it all day with no problems and the next day it stopped working and I didn't change a thing.
As you stated, are you really using Gimp version 3.0 ?
Try disabling your Gimp profile C:\Users\"yourname"\AppData\Roaming\GIMP\2.10 by renaming to C:\Users\"yourname"\AppData\Roaming\GIMP\2.10.bakup
Start Gimp and it creates a new user profile. Now open an image with layers. Can you drag to re-order layers?
Edit: you could give a few more details, save a guess. Are you using a graphics tablet (and make) ? Are you using a 4K monitor ? Are you using dual monitors ?