@Jasem, I regret to say that am still seeing the same error " [WARNING] Port /dev/ttyUSB0 is already used by another driver or process." I am running astroberry 2.03 downloaded from the .img file. I have gone through this process indilib.org/get-indi/download-rpi.html
Additionally I have done sudo apt dist-upgrade, sudo apt update, several reboots, I have removed modemmanager and gpsd. I am running this on a Pi4 / 8GB and have connected my Losmandy G11 Gemini-1 to both USB2 and USB3 ports. I have gone through power off of the Gemini and the Pi, disconnections of both. I have made sure that only the Gemini (and the USB 3.0 boot SSD) are connected to the Pi.
I do not know what to do next. I know this should work and I know that you know it works. What next please?