While I love Lee dies, the one that I absolutely hate is their expansion/mouth flare dies. I tried using them for .32 and could never get the bullets to sit square and would get bulges and lead shavings. Only caliber I ever had success with the Lee expanders is .45.
I fixed the issue by getting Lyman M dies and was glad I did. Far superior.
OP, it may have just been a mistake at the Lee factory.