HyperDeck Studio 4K Pro - problem H265

The problem - first frame is half diced compressed in h265 format. 2160p50
Tried on 4 different Hyperdecks and always the same problem.
Some solution?
I purchased it using the H265 codec, it seems unusable.
Tried on 4 different Hyperdecks and always the same problem.
Some solution?
I purchased it using the H265 codec, it seems unusable.