Import MIDI function

[sonic_kitchen]

I have Chrome/Win10 and I have never been able to load any of my own MIDI into this. I can go download a MIDI from vgmusic.com and load THAT in here fine, but none of my own authored MIDI. I have yet to obtain clear information about why some files work and some don't. It seems to be unrelated to PC/CC, file extension, file header, etc.
One thing I have noticed is that is mis-detects all my files as having 1 more track than they actually do. But no matter how I instruct OS to deal (or not deal) with any given track in a MIDI item, it does not work.