Issue with GND-IM triggering Tempi

Hi guys, quick question its driving me nuts…
I have a GND IM on T16 and I’ve routed it to out F on the MD…
From there am sending it the Make Noise Tempi Tempo input but it seems to jump around… sometimes missing a step or not responding to Tempo change on the MD until a few bars later…

It’s very unreliable. So i figured it try it with the Maths instead… to check if Tempi was not working properly… Same issue.

Any thoughts?

Cheers