For some reason XTCU will not add a module that is different to the Graphical Network view.
i.e. If I have a XBP9B-DMUT-022 connected and there are XBP9B-DMWT-002 modules available they are not added to the network.
I’ve swapped them around and the same thing occurs.
I know they are able to communicate as I can see messages being received