1. Can you access the radar plugin preferences window from the OpenCPN Settings > Plug-in tab? If you can, this means the plug-in is compatible with O. We are suffering through a transitory phase where O has changed the wx library version and the plug-in was still using an older version. We believe these to be fixed in 5.3.3, especially on macOS.
2. In that page, you should be able to click on the radar type selection button and select your radar type. This selection window is not programmed to ‘go away’. If it is, something
funny is going on and we would like a report on GitHub including a log and ini file.
3. Sorry, but given how we are out sailing and how this forum doesn’t allow us to
monitor for ‘radar plug-in’, 10 days is often not enough lead time for us to react. If you want us to see it ASAP, you are better off on the plug-in page on github.
4. Sorry but ‘flatpak on Ubuntu 22.04’ is not specific enough, we also need a processor architecture…
https://github.com/opencpn-radar-pi/radar_pi