Converting Dolby Vision to HDR10

[error101]

I just check my jellyfin transcoding logs and it has ffmpeg version 7.0.2.

But I also checked the default installed in ubuntu kernel and it says ffmpeg version 6.1.1-3ubuntu5, is this the reason why i am having the issues and if so how do I ensure the correct FFmpeg version is being used when removing dolby vision?

*update*

i thought i would give the other method a go and updated my ubuntu ffmpeg version to match and unfortunately still getting the flicker/blinking issue.

for me the go to method would be as mentioned above in my earlier post which has worked flawlessly on a further 4 movies