For 2 weeks now I have not been able to work with the legally purchased Vegas 21 pro (these names and the scale of their complications are so great that it is not clear which program is involved. in This support does not even mention Vegas 21 pro.... ). I cannot load the movie because I constantly get this message ‘The activation of HEVC codec failed’. I have reinstalled 2 times. And still the same. What should I do? Tomasz