I've sold over 50 Flash models and its the first ones I have heard of. Storage/packing is the most likely, plus you guys see higher temps than we do, so epoxy softens very slightly, if any pressure is against the surface when it cools it will set that way. I used to get it on my Rookie/Harpoon, but that had a very thin edge on the front side of the hinge cut, the Flash is much thicker. Simple fix, but something to look out for on pre flight control checks.

Dw