Waveform doesn’t recognize MIDI loops. – Tracktion Forum

I have a bunch of old MIDI loops that I’ve had hanging around for ages, and decided to try and use them in Waveform, but Waveform won’t recognize them. I tried dragging a midi file to the timeline, and also adding the folder the files are in to search, but I can’t bring these MIDI files in. The files readily drop right onto the timeline in Reaper.
How do I get Waveform to recognize these MIDI loops?
Thanks.