Distribution List Chat After Moving to New Teams

Before moving to New Teams, our users could enter a partial distribution list name in chat and a list of matching distribution lists would appear. After the move, when users enter a partial name, only one of the options is returned, which is not the one that is wanted. In order to get the specific distribution list in chat, our users have to enter the full name of the distribution list. I have "Chat With Distribution Lists" enabled in Admin. Suggestions?