so its been about a month since i last washed, glazed, and waxed my car with nxt. About two weeks ago i washed used meguiars QD. Today i went to clean out the interior (vacuum, leather, etc) and i notice that all over my car,they look like spots left over from rain. But in the past when i had these spots i would take my california duster over my car and then they would be gone. Today when i used the california duster the spots are still there. I was just wondering what will get rid of these and if they are a bad thing.