Hello Andrew,
I have the same problem as Sunny but I don't have the ivao program or other virtual traffic programs.
I have no idea which program will interfere with Aerosoft Airbus professional full series, as this problem only occurs with these aircraft.
The only program I have installed that might somehow interfere is Fligth Crew A320 buttons for MSFS2020.
I am working with Vri MCP Combo2 Boeing in P3D V5.
Do you have any ideas about it.
Thank you for the support you have given the community for years with your wonderful program.
In MSFS2020 I really have a hard time not using it like in P3D V5.
Regards
Roberto