MPC1K midi Sync with miniak

Hi

I got a miniak to use live with my MPC. I've connected the miniak as midi slave to the MPC, and I wonder if it's normal that the tempo display on the Miniak should change constantly while the MPC is playing its sequences (the values displayed range from perhaps - 0.2 to + 0.2 beats, with the "average" being apparently the correct tempo.)

I use JJ OS if this has any relation.

thanks

vim