Racing online for expample on AS North, then i quit the server, click hotlapping and the config always changes to the first combo in the list (AS Cadet in this case)...

That happens to me also, but never annoyed me

well i don't mind either, but it's wierd

It has always been like this. This is not a bug.

be nice to have it fixed though. Whether it's intentional or not it does come across as a little bug-esque

Yes it would be nice if LFS could always remember the last track config, car type and setup file you were using at any given track area. Even just remembering the track config would save some time.