Can't get camera feed in unity play mode

I can’t get the webcam camera feed in the game view during play mode.
After reading the instructions on this, still unsuccessful. (i have inserted the device name into the camera component)
Camera feed is showing on desktop but still not in unity,
and i get the error:

[zcv::Err][2023-08-14 11:39:06] [Zappar] ERROR MF_E_INVALIDMEDIATYPE
UnityEngine.Debug:LogError (object)

in the console

Any experience on how to fix this?
Its essential for a easy workflow that i can test the AR project without doing a build every 3 minuets

Unity 2021.3.8
URP 12.1.7
Zappar universal AR plugin 3.2.4