Changing patterns using midi notes

Hi Folks.
I’m using the OT to send midi notes to the MD to change the patterns.
The patterns change fine but every time the OT sequence loops the first drum sound is doubled. i have the midi map for all individual drum sounds switched off so they can’t be getting triggered.
The MD patterns are mapped to C-1 thru to B0
It’s baking my noodle, it sounds like an accent every time the OT re triggers the pattern
Any Ideas?

If anyone is interested Ive found a bit of a workaround. as long as you are using accents for your kick drum just remove the first accent and it levels out nicely.