Sympathy for the devil, the aspect ratio is off.
You can fix it with FFmpeg.exe
make a folder, rename vid to Sympathy.mkv,
Create a .bat file, with this inside, run it,

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ffmpeg -i Sympathy.mkv -aspect 2.350 -c copy Sympathy-2.35.mkv
Pause

Pause
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save that for other vids you want to fix, and you can play with the numbers until you get it right to your liking

I love FFmPEG, very powerful tool, fast and lossless LOTS of other stuff you can DO with it, Join two vids:

ffmpeg.exe -f concat -i list.txt -c copy output.mp4

Pause
Create a list.txt with the vid files named 1.mkv and 2.mks on separate lines

ENJOY