Ableton Midi forwarding two slides at a time

When Ableton sends midi not, the next slides forwards by 2 slides. I am unable to go to next slide only. Is there a way to prevent this? Thank you.

Hey, how did you go about setting up WorshipTools to speak with Ableton? If you don't mind.

I have the same problem. It seems Presenter is being triggered by the Note On and the Note Off of a single key press, resulting in two slide advancements... anyway to have the Presenter ignore the the Note Off?