Cant save setups on modded cars

Yesterday I updated to CM last version, and it seems that I cant save setups on modded cars (it saves the filename but the numbers stay the default ones...)
However on Kunos cars it saves normally.
Any advice ?? Anyone else has this?
didn't got any response... Weird thing is that next day the problem disappeared! After 2 days, again I couldn't save, and next day it was working again!
It drives me crazy......
Did you find the cause?