I’ve got the WD TV LIVE, and testet following firmwares: 1.06.15, 1.05.04, 1.04.22
With all i got the same problem.
After watching a movie (doesn’t matter whitch codecs and container (mkv with h264 or avi with xvid e.g.)) after ~10 minutes, pause, stop, rw and fw is not possible anymore. At the beginning it works fine.
And it doesn’t matter if i use as source Networt Shares or a directly plugged in usb drive.
So if i pressed pause, the movie is still going on. first you just hear audio and you are back in the file explorer. if you then enter the movie again, you got the pictures back, but with the blue waiting circle.
Same happening if you push stop.