devkitPro

I tried saving in compatibility mode too, that didn't help. I assume that removed the nonstandard data that may have been added by OpenMPT?

Just wanted to add a few things:

I created this in OpenMPT, it plays fine in there, when I play it in ModPlug Player it seems to play slower than it should (should be 290bpm), maybe indicating something is wrong.

I also notice that when playing it in MPP it lists the total time as 37 seconds, this ...