Performing a clean installation from scratch resolved the issue for me on vu+duo4k with opeatv 7.6.
Performing a clean installation from scratch resolved the issue for me on vu+duo4k with opeatv 7.6.
I have the same issue with both 7.6 and 7.5.1. I have a Gigablue Quad 4K.
I performed a clean installation from scratch.