It's a well-known bug -- one of countless many in 2018.
adobe admits it -- so anyone that tells you differently doesn't know better.
They sold the whole 2018 program around a feature that would mimic an Avid in "Sharing bins" -- also doesn't work.
They don't give a — about professional editors - they figure enough people will buy it anyways - that's why they haven't fixed ANY of the bugs yet. AAF bug? nope. Many hotkey functions disabled now? yep still a problem.
Adobe could give two —.
Moderator note: Please. No profanity is allowed. Have some courtesy here, we have minors reading these forums.