That's a really good point. By waterproof cover, do you mean the whole car weatherproof covers?CJSJAG wrote: ↑Thu Feb 17, 2022 7:06 pm There have been several recent posts on the US forum about paint damage from using "waterproof" covers.
The damage looks similar to yours. Apparently, the paint does not like to be subjected to moisture under a closed cover for even several days.
Either because the "waterproof" cover is not really waterproof or because temperature changes cause the car to sweat, moisture can be trapped against the paint causing the damage.
Have you got any links to the US forum?