OK, I give up...
A
Alfie Kirkpatrick [Developer]
It enables greedy bear off!
D
Denis-George Constantin (playhunter)
Alfie Kirkpatrick [Developer] I found one issue for this new feature: if you click on the checkers in the tray when the auto bearoff is enabled (and also if it is not enabled, but you clicked twice or more after you have clicked to auto bearoff the current roll), that will trigger error messages.
See some examples here: https://s9.ro/25i9