I've had this on a couple or more songs, but can't presently see why. They've come from other people.

I'm trying to change the slow the tempo to practice the sone, but within a few notes it's back to full speed. I can't see a temp message in the MIDI. i can see a red line on bar one, saying there's a setting there, but when I open via F5, I can't see anything being set.
However, if I click [Reset Bar], the red line goes away and I can control the tempo.

This particular song is supposed to be cut-time, but is showing 4/4, which is OK, but when it plays the chords lags the melody by a few eighth notes. After the [Reset Bar], the song plays at around 2/3 of the speed it previously was and the melody notes and the chords appear to be sensibly on time.

At present I'm at a loss what's going in here.

https://www.gscott.me.uk/MusicSheets/Flight%20To%20Jordan.MGU

Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
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