Video plays in Cubase 12 but not Cubase 13

So I have seen a topic for this already but still no fix. Below are the pools from Cubase 12 and Cubase 13. Why is this valid in 12 and not 13. I see this was reported months ago but not fixed. I’m in the middle of a project with the video already imported and a lot of work done. I do not want to start re-encoding. Why has this changed? I would like to use 13 as I’m getting used to the new features, plus I shouldn’t have to go back to 12.

Ok so no reply from anyone.
So is it a bug? It is as far as I’m concerned.
Is the next step to go through official support?