I am very confused. I just tried to upload an MIDI file into UTAU to make a FNF song, but now everything isn't right. For one thing, I can't change the tempo, nor can I press play without getting the error message. What am I doing wrong?
In order to fix the tempo, select the very first note in the project, then right click on the 500000 just above it (not inside the box). This will allow you to delete it.