Jordan,
No, I've always had a plate in, and at the time it was a stock (unmodified) TST #10 so it can't be blamed on a custom plate cut too deep.
The tech said there was nothing he could see that caused it. He said it does happen on a rare occasion. He's seen a few others over the years. If I remember correctly, I think he said when the engine is shut off, the rack bumps the pin at fuel shut down.
-Jay