[Guilles]

Latest (v.1.2.1) version doesn't seem to work at all for me on Leia, aTV oreo, Mi Box. Browsing is quicker streaming seems to start but never really does, just black screen.
v1.2.0 works perfectly. Just thought I'd check if there's anyone else getting that except me, I'll investigate further.

Same here. I literally had just upgraded seconds before seeing your post, and had just discovered it didn't work.

I've tried fiddling with some of the usual settings that make a difference (DHCP, etc) but can't get it to play. Kodi thinks it's playing, but no video (or audio) appears.
Rolling back to 1.2.0 is fine again.

I'm using Android 9 on Nvidia Shield TV, Kodi Leia. 

Same here. I was wondering why the streams would not start and then I checked this thread and noticed that my addon was updated 1.2.1.
I rolled back to 1.2.0 and everything works again.
Android 8.0 Mi Box