When trying to edit some lossless captures on VRD6 Beta 811a from MagicYuv or Lagarith or Ut in YUV 4:2:0 or 4:2:2, they all have a green box on the lower half of the picture. I tried shift-tool-options, but didn't see any decoder option or other flag to change. The same videos work fine on VRD Pro 5. Any advice? Thanks.