Can't upload most MIDIs

[NerdBoy628]

I have been using this website for a long time, but I have tried many times to upload some of my own MIDIs, and most of them don't work. I have tried both .mid and .midi extensions and they both result in the "this extension is not allowed" message. Why is this happening??

[cosmicPython]

The MIDI uploader has been super spotty as of late, and we're working on fixing those issues. It is also possible that your file exceeds a memory usage limit that we put into the site as to not crash it.

[Crumb]

Yeah the MIDI is picky