[HELP] Videos unable to be played after compiling

[Selur]

Now, .mov doesn't really work on my editing software, hence why I'm trying to use .mp4 predominantly. I forgot to mention it originally i want to use it in an editing software as well.

If your editing software doesn't support mov, it probably will not support ProRes. ProRes is only common in .mov.

Check if your editing software supports one of these:
a. Lossless H.265 with 'Main 4:4:4 - 12bit' (supported by x265)
b. FFvHuff with 'i444' and 16-bit (supported by FFvHuff)
c. FFV1 with 'i444' and 16-bit (supported by FFV1)
There are other options like DNxHD, ProRes and others that are at most 12bit or 10bit and not lossless.
(Personally, I would probably use FFV1, since it should be supported by anything at supports libav.)
Lossless compression will create large files, but that is okay for intermediate files (files that still get edited).
Ideally your take your source and stay lossless until the last compression for distribution.
You probably don't want to upload a lossless file to YouTube due to the size. So for that I would either use x264 if the resolution <= HD and x265 otherwise.
(both with crf encoding and at most a crf of 18)
YouTube will reencode everything you upload, no matter whether it is a file you downloaded from YouTube or not.

Cu Selur