Not sure about why, but I had the same issue on my Starliner with DC paint.
My entire car came out like your issue, so I stripped it and then bought a new can of the same paint (True Blue).
I used DC primer first, thoroughly prepped, cleaned then repainted and the same result.
The last time however I went ahead and polished it with auto polish and voila, all was well.
I used DC a lot, and it hadn't happened before. Dunno if I'll be using it again.