I was having issues with my Esatto focuser connecting to Astroberry. The Esatto focuser lists itself as Vendor 10c4 and ProductID ea60. It would show up in the list, however Astroberry would say the port was in use by another process.
I found there were several rules.d files under /lib/udev/rules.d. One identified the Vendor 10c4 and product ea60 as 60-gpsd.rules, and another was located in 99-vantage rules.
I located the references in those two files and commented them out. Now it connects properly.