Well I sometimes have this recurring problem you just mentioned. I did a "verify integrity" and it found 1 file which it downloaded then again (although I did not change anything, no mods, no tracks, nada). Then I start AMS again but the problem was still there. So I did another "verify integrity" check and it found nothing wrong this time. I started AMS again and the problem was gone, AI started to move out of their pitboxes during practice now. Beats me why it worked the 2nd time, but not the 1st time. All I know is that sometimes this problem comes back. Hope a complete reinstall of Windows & AMS in the future will completely resolve this issue, or maybe Reiza knows what the culprit is and will include a hotfix in one of their final hotfix patches. Seems they're pretty busy on the last DLC and AMS2, so let's keep our fingers crossed.