Wierd Parking issue

I have this wierd issue, with fixtures being "overriden" even though they have been park.

Say I select 3 cyberlights, set them as I like, click touch, then park. In theory, NOTHING on those lights should ever move again.

But theory is a wonderful thing, and I can run a movement cuelist (with those and may other fixtures in that list), and the fixtures will snap pan left (or right) the snap back to where they were. They never actually start moving, only freek out for a second, same few cues in the list.

Any ideas what i might be missing?
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