Forgot one, WSJT-X has the ability to adjust the Power level at the radio using the slider on the right of the app screen. Currently this doesn’t appear to work on WRL-CAT.
EDIT - I might have sorted this out by disabling split operation in WSJT-X
Also, WRL-CAT might be blocking GridTracker from accessing the audio signal. With FLRig Gridtracker and WSJT-X both received the incoming audio. Now, WSJT-X receives but Gridtracker doesn’t appear to be receiving.
Once WRL can pass logging to QRZ and LOTW, etc, this is probably not an issue.