Originally Posted by Kean
There could be several reasons the "wax" you're using could be leaving streaks/residue. ....the product itself could be to blame, the amount of product you're using (applying too heavily), the surface is too hot, high humidity, residue from another product, contamination, etc.
Personally, I have used a couple of those cheap orbitals back in the day and was never impressed with their performance. I would take Ncreamer's advice and just find a cool, shady spot to wax the car by hand. However, I would advise that you first do a small section of a panel to test your product(s) and techniques before committing to the entire vehicle. You'll save a lot of time and frustration this way. Get your process down first and then proceed.
Ya in gonna say heat has something to do with it i have no shade threw the day and tgen car being black creates alot of heat.