Hello.. After updating to the latest software on our GDU 460( 9.51) (We have installed two in our aircraft LN-YEW) we get errors and communication problems with the transponder which is of type GTX23. Have tried and checked in the menus but so far I can't see what the error is, maybe the software on the GTX23 is wrong/too old so that it doesn't talk to the GDU460. It would be nice if you/you could come up with a suggestion on how this can be solved... Attaching pictures so you can see what comes up on the screens..