03-16-2022, 05:12 PM
Totally Not A Bot is right I think.
If the file you have has a .midi extension, try making a copy of the file to back it up, and then forcibly re-name it so that the extension is .mid instead of .midi, and then upload that to OS and see if it helps.
If the file you have has a .midi extension, try making a copy of the file to back it up, and then forcibly re-name it so that the extension is .mid instead of .midi, and then upload that to OS and see if it helps.