all weather functions in the new SDK are deactivated. FSrealWX can connect to the FS2020, but no weather data is transmitted.
I have to wait until the SDK of FS2020 releases the weather functions.
If you find an error, then please give me exactly about your system. Which sim (FSX / P3D / Xplane). Which connection (FSUIPC / SimConnect / FSrealWX-Bridge). Which OS.