Ive got A cube orange and ADS-B carrier board and A Skydroid T12 radio and using the Skydroid Towet GUI.
If I leave the ADS-B disconnected,eg do not put serial 5 to 1 for mavlink all is good and I can connect the Tower ground station,if however I put serial 5 on mavlink im not able to connect Tower I tried mavlink 2 as well,other wise all is good.