I unfortunately don't have reproduction steps for this but I've noticed the following with FAR and 1.02 32 bit. Sometimes if I go into a sub orbital trajectory and return, I get zero air drag, the 're-entry' effects don't work and I can't slow down via air drag. If I quick save, close and reopen the game and then load the quick save, it works again, and then breaks a little bit later with another launch.