New media files won't play

[Fate]

thanks for help.
Yes, the permissions to all files are the same with all access possible.

So do you think that the problem might be the poor quality of the ssd drive? Though it copies the files, some sectors might be broken?

Can you try playing with a normal media player mpv on linux or vlc on windows?
Does it play?

Hard to tell where it got damaged... usually ssd work or are dead.  I rarely see corrupt data being written.