What brand are you speaking of...UT?
I have never seen those problems of any sort on any others except for a few UTs. UTs are very well known for having the sort of problems that you had mentioned prior. I am sure glad that none of my cars have tire issues.Ive seem them on Kyosho, Gate, Minichamps, American Muscle, UT, ERTL, Hot Wheels, Bburago, Maisto and a few others