Thank you for reporting this to us and especially for providing us with sample video files. This helps so much.
The current version of Viblast doesn't support WSS. I am looking at this at the moment and hopefully will have a solution in the coming days.
I am happy to announce that we fixed this issue in our latest release v6.07.
Thanks a log guys, you rock
I confirm implementation,
I did all the tests now everything is working very good.