Filmon PVR doesn't play HD



Hello,
I’m trying out the pvr.filmon addon. I have a filmon subscription and HD works in the Web Player and using various Apps, just not in the kodi addon. I have selected the “prefer HD streams” option but that does not semm to do anything.
System setup: Kodi 21.0.0 and pvr.filmon 21.0.1.2 on LIbreelec 12.0.0 on x86
Any ideas?

Cheers,
Fred