Ugoos AM6b+ Dolby Vision not working on Hisense E7N

I have tried all of those options, but unfortunately, they haven’t worked out. I’m feeling quite frustrated. In another thread, I saw that the NG build is too old and cannot parse some EDID. Ugoos AM6b+ no Dolby Vision through Denon AVR - #16 by Portisch

Could this be the cause of my issue?