samba working but ssh not is odd, nothing changed in that area. Are you sure it's enabled and worked with the previous build?
I'd recommend rolling back to the previous build, connect both the TV and the AVR and then grab the edid of both devices, then I'll see if I can reproduce the issue here.
and then upload the edid-tv.bin and edid-avr.bin files (put them into a zip so the forum software allows attaching it).
EDIT: ah, and please post pastekodi and modetest from the previous build, too.