When I first rolled over from my RPI3B+ to an RPI4B, I was eggar to use the two new USB3 ports with my two USB3 hubs. Well, my GPS wouldn’t work. My QHYCCD and ZWO cameras disappeared. I thought I had installed AstroBerry 2.0.3 wrong.
I went back to USB2 and everything came back. Then I read the RF interference posts. I am waiting for a clear night to test moving to 5G.
After the last update and the PI account hack, I lost access to the WIFI of AstroBerry. So, now I bring a wireless router to connect to AstroBerry.