(12-13-2020, 09:42 AM)Ofnuts Wrote: Also, check that the selection is visible (View>Show selection), or hit Ctrl-T to toggle the visibility.
Yes, considering the OP's second post on cutting the selection. Difficult to see from the OP's video but the selection does show then vanish and that will happen when selection is off in the view menu. However the OP's video does show the tool in addition mode.
edit: Not looking very promising from this post https://www.reddit.com/r/GIMP/comments/k...le_on_mac/