Summary: Getting a "Circuit cannot be sold!" message while trying to sell circuits in bench.
-When did the Bug occur? + What did you do before you experienced the Bug (please be as detailed as possible)?
Just beat DS3 on Hard, played some co-op before making a NG+ on Impossible. Reached the first bench. All +2/+2 circuits or below can still be sold normally, but +3, +3/+2 and +3/+3 give me the "Circuit cannot be sold" message at the bench. Created a +3+3 to test, yep, can't sell that either.
-What did you expect to happen?
Thought it might be a bugged save file, went back to my first save (since NG+ uses another slot) to test. Picked a random chapter, went to the nearest bench, same thing happens. Can't sell them, can't drop them, all clogging up the bench screen during upgrades.