I tried slowing down an ending in a song, by drawing a linear curve in a tempo track. (I have MIDI and Audio tracks). But some tracks are slowing down and some are not, I also realized that some tracks weren’t set to “musical” mode. So I switched all tracks to musical mode, and still not all the tracks are slowing down.
If you are composing with MIDI, you need to stay on musical mode and record any audio in that mode only.
That’s the biggest bucket of hogwash I’ve heard in a long time.
Learn the difference / relation between “musical mode”, which is for audio events, and “musical / linear timebase”, which is for tracks.