good to hear it is still being worked on. The 2K is 2048x1024 and the 4K is 4096x2048 both movies play fine outside of Unreal but are really slow in Engine and their quality goes way down. It’s understandable that there’s a lot of computation going on to map the video to the sphere, but I don’t believe it should be so slow. Unity can play 4K videos in editor without a hitch. I can even stream 2K videos directly to my mobile app.
Thanks for continuing to work on it. (I’ve attached a comparison screenshot of a 4k video to show the quality degradation)
