Handling of triplets by MIDI import

Using MuseScore, I created a simple score containing triplets, then exported it to standard midi format. When I imported this into n-Track, the triplets were incorrectly handled, turning into regular eighth notes, or something like that. Also, playing this freezes n-Track.

When I opened the file with a simple MIDI editor, the triplets were correctly handled and the file played normally.

I tired re-saving the MIDI file in the MIDI editor and importing that, but this did not resolve the problem.

Is n-Track automatically quantizing the MIDI file? Is there a setting I can change to fix this? Can I prevent n-Track from freezing?

I’m using the latest version.