I am trying to set up 2 different racks so that an LK Altera can utilize multiple TP20 probes(MCR20 rack) while also being able to swap over to the SM25-2 scanning module(FCR25-L rack).  To do this, I am using a TM25-20 which is an adapter attached to the SP25 body, but TP20 modules fit in the bottom.  The MCR20 rack is setup just fine.  I can swap probes out no problem.   Converting from touch to scan works fine, it drops off the active TP20 module in the MCR20, then goes over to the FCR25-L and drops off the TM25-20, then grabs the SM25-2 with probe attached.  No worries.  However!  When I want to go back to TP20?  It just drops off the SM25-2 and then wants to pick up the TP20 module with just the bare SP25!  The really weird thing?  If I let it try, it positions as if the TM25 is still attached!

Anyone have a clue why it would behave this way?