As I was experiencing similar playback problems, I started to find out the cause. I couldn’t find the cause but I made an interesting discovery. I tested on 4 Homatics devices, Dune Homatics rev.d without A/V connection, Dune Premier Pro rev.b with A/V connection, Homatics rev.b (silver) and Homatics rev.d (rosegold), the result is very strange, rev.b is not effected with this issue, VC-1, mp2, interlaced materials with hardware acceleration are good, picture is okay, rev.d is problematic, and at this time the software decoding is the only solution.