Moonlight on RPI4 Recalbox 7.0.1 only works with EmulationStation restart and stop

Its my first issue ever i post on gitlab and i hope it is ok this way:

Pairing works fine, but if you want to start the stream, the rpi4 just cuts off the hdmi signal. On the PC the Game starts, but the TV remains black.

If you restart ES over the webinterface,TV turns back on and you can see the steam, but with the menu-music from ES in the background and you control the stream and ES parallel.

Moonlight works with the newest Nvidia driver and Geforce Experience v. 3.20.2.34 (everything greater that Version dont work yet)

You can download the official release here: https://de.download.nvidia.com/GFE/GFEClient/3.20.2.34/GeForce_Experience_v3.20.2.43.exe

And here is a link about the Problem to the recalbox forum: https://forum.recalbox.com/topic/21446/moonlight-on-recalbox-7-behave-strange