Attempting to negate non-baseparts causes studio to freeze

Attempting to union non-baseparts causes studio to give a warning box, explaining that only parts, etc. can be unioned. This is good behavior. This does not happen for negation, though. There have been a number of times that I’ve accidentally selected a model instead of a part, and hit negate, causing studio to freeze. Further investigation seems to indicate that this is also the case for all other instances that are not baseparts."

Can anyone else confirm?

Confirmed.