20.10 – Unable to play most video files on ubuntu Groovy Gorilla

I updated my ubuntu recently, and ever since I’ve done that I’m no longer able to play most of my video files with the default purple video app of ubuntu. It’s so annoying that I constantly have to switsch to another application like SMPlayer and so on. I have no idea why this happens. Here is what I get shown when I click on a video to play:

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When I click on “Find in ubuntu software” I’m also shown nothing. I wonder why this should happen in a newer version of ubuntu since it was all fie with the previous, I’ve always stuck to the defaults!
I’d appreciate it if somebody could help me fix this or at least figure out why this is happening.