You may not immediately notice if you don't know the kit, but there should be 4 left wings and 4 right wings... not 5 and 3. It's a little hard to assemble 4 wasps when you don't have 4 sets of parts. Sigh.
I just submitted a product replacement request with Privateer Press. I'll probably post my experience with the resolution whenever it occurs. I have no idea how long it should take.
