differen values on qp card

Hi, i have a problem. Im using multiple computers (Mac) with different versions of the system and CaptureOne13.1.3.9 on stationary computer and 13.1.4.15 on my laptop. Im using the qp card during my photoshoots. And I noticed that the qp card grey value shown on eip file on my Mac laptop is different than value on the same  eip file opened in my stationary Mac computer. Why is that? Im making no adjustments, no nothing, using only CaptureOne. Its a huge dilemma for me.