It appears that almost any event from a CC can cause the master volume in Hyper Canvas to fluctuate wildly. (unless several measures have been deleted)

I took about 9 different midi files to see what would happen.
Some were okay when I deleted any events at the beginning. On a few...the master volume would fluctuate even with a CC64. (sustain)

What stumps me is that it doesn't happen with Coyote.
It also doesn't happen in Hyper Canvas if I delete several of the 1st measures. (even tho' CC's are being used.)

Maybe I should just give up on Hyper Canvas & save everyone time. Is TTS sold separately?