I saw where you mentioned this before and I had to think. I haven't noticed it but I will check on it here in a bit.
When you say it doesn't work when flipped do you mean the AI won't let you flip it or the play gets blown up when flipped?
Be back with what I find.
EDIT: I see what you mean but I found that almost every play in non-flappable. Is that a word? I think the reason is almost every play has a predetermined, presnap motion so it makes flipping impossible.
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