The above snapshots are with tbs6983 card.
Actually,8K's reception works with almost any dvb-s2 card.
For example,I did tests with the latest tbs6903X card and apps-Crazyscan,TransEdit and DVBViewer.
The problem is not the card,as the codec uses and especially the computer resources(CPU & GPU).
For now LAV codec is not working on this 8K stream with DVB Dream.No Video Renderer has helped me or other combinations of codecs.I hope another user can succeed.
There are no problems with other dvbs players.