For today's finale joy enter a randomly resetting Mod wheel on Channel 6. I set the value, hit play and it automatically resets itself to 0. Then, three notes later, changes to mid point (despite no change in dynamics) then gently slides back down. It follows this behaviour no matter what patch you use, what dynamic you set.

I have 1) rebooted Finale 2) rebooted the computer 3) emptied the channel and re-assigned patch 4) emptied the measure and re-entered the notes!!!

The only way to get an accurate playback is to set HP to 'none'. This is the second day in a row that I have had to set HP to 'none' to get an accurate playback.This has me stumped. Logic seems to suggest that it is an HP problem?

PS I have changed no settings in HP. The behaviour is the same in 26.3 and 25.5. I am still running Mojave, because I have a 700 page opera score in 25.5 that I do not want to mess around with, so will still be using 25.5 for that.