I'm on FW 2017.34 2448cfc this seems to be a new "feature" since the last update. I have creep mode on and on several occasions when shifting into reverse from park my car has moved forward instead of reverse. The only thing I can think is that I've been on a slight grade but this has NEVER happened before and it has occurred in parking lots I use all the time. One time I thought my car was in drive instead of reverse because of the way it was behaving. I'm trying to see if anyone else has experienced this issue before I call Tesla support.