Kinda had this happen with my current Sonic Blue but not at the fault of who I bought it from. I'm in contact and good standing with the previous owner and I also talk with Stephanie who owned the car back before the guy I bought it from. She's the office manager and blu auto. From what she told...
Here's the rest of the paint correction after I finished it up today. First 4 pics are the before pics and the next 4 in the same area once finished. Pics taken around the hood / fender areas. Also some additional pictures with the car being done. Ceramic coating will be done tomorrow.
I just put it down as an additional moisture barrier. It was a plastic roll I bought for a garage project that I decided not to do so figured I'd use it for something else. Also a few photo's of the continuing paint correction process. I took some before pictures but it was on the fender / hood...
I sold my first one last spring after having it 3 years. Now have a second one and not letting this one go. It's getting too expensive to get back into these lol.
Pretty sure I stole your screen name for my plate and YT channel name
Considering it runs fine, has non codes or idle issues I'd assume just as you did that its fine. Plus how you saw things then may not be as they are soon after.