There is nothing wrong with the clip I can play it in my Quicktime-player.
But in Premiere it doesn't work. I get the error-code "Media Mismatch". And it´s only in "V2-video2"-track. All the clips in V1 works perfectly fine. If I try to import the clips again it´s the same problem only a audio-file left.
This sounds like a bug in the current version. You might try the clips in a previous version of Premiere Pro. Updating macOS might also help, but I would try the earlier version first. Please report the issue with a comment and an "upvote" here: Link Media issues: Videos unexpectedly unlink, insists files are audio – Adobe video & audio apps
Thanks! Previous version didn't work. I try to report it and hope adobe solve the problem soon.