Flexhorn

I'm not sure why but I had some streaks on one of my doors I noticed a week after my coating. I tried washing and ceramic boost but could get them to go away. I know you're not supposed to but I used the buttery wax on the door and it was the only thing to get the streaks out. Should I reapply a ceramic coat to this door?

Thanks

Can you apply the ceramic coating to the windshield to help protect against rocks?

Can you apply the ceramic coat to plastic mirrors/grill?

How long should I let the initial ceramic coat (Adam's) cure before I apply a second coat?