Some observations:
P25 trunking seems to work as intended. However, on one very busy system, you can't stop it. Going into the "Channels" tab and clicking the red "Stop" button doesn't stop the system from playing. It just continues to play. I have to close the program and then restart it. Another not so busy P25 system seems to stop when you stop it.
DMR Connect Plus and Tier III systems seem to only play audio from channels that are on the second slot of the control channel. The channel map information seems to be ignored. When you highlight the orange "Control" bar, no information appears in the "Events" tab, although the "Messages" tab does show information. At the top, no frequency, signal, decode, source, Target Alias, or Target information is displayed.