Problem create multicam clip with audio

Before DVR 20, if i created a multicam clip synced based on audio, if one of the tracks couldn't be synced, an error message appeared but the multicam clip was nevertheless created and it contained all clips selected including the clip which couldn't be audio synced.
Now, in the same situation, the multicam clip is still created but the clip which couldn't be synced is not part of the multiclip. Please, fix this.