Hi dude, I have a similar problem, I tried to ask for help to the french community, but no response : https://forum.recalbox.com/topic/22530/problème-streaming-moonlight-recalbox-7-x-et-retour-es
For me :
RPI 4 & GFE 3.10.0.95 & Recalbox 7.0.1
Appairing & game list OK
TV Screen & game resolution 1080p
Game started on PC but TV black screen and i can control the game with my controller
When I quit the game : RPI wait something and i've a black screen
I did not find any log file