Sql Query when starting zoom meeting?

My wife does SilverSneakers with Zoom meeting.  Every time she starts the meeting, my router's Threat Prevention says "SQL probe response overflow attempt".  I have to allow this in the router or else the meeting video plays haltingly at best.  The router is being overwhelmed with these SQL probes (or what the Threat Prevention THINKS is a SQL probe).  There are hundreds of them until I allow it.  Then the video continues as normal. Source IP  today was 149.137.81.242 which is a Zoom Video Communication, Inc IP.

Why would Zoom meeting be trying a SQL probe?  What might Zoom meeting be trying that might LOOK like a SQL probe?