Hi Peter S,
I assume you are talking about running VRS from the ‘Radar’ tab on your OGN-R?
If so, it normally does retain your settings between sessions, though I have noticed that they seem to be reset to a default by PAW OGN-R software auto-updates.
I think this has something to do with the fact that the settings are unique to the device you were using when you set them - i.e. you can set up several devices from your Ground Station, each with it’s own user-selectable settings and all running independently.
Regards
Peter R