Unnecessary time/changebar in motion study

Hello,

I've got a changebar for mates in my motion study, despite the fact that I'm not altering any mates during the study. This appears to be keeping an extra ten seconds or so at the end of the study (very costly for ~10s @ 25 fps, rendered). I've tried surpressing the initial key, but it didn't help. Also tried reclaculating the study.

Can anyone help troubleshoot?

Thnks!!

SolidworksMotion Studies