I've been having the same ghost "slow starts" as leungbok I think. I would start the race, the timer for the record I set started immediately but the ghost starts like one second later.

I also have the Goteki-Icaras problem I described earlier, when my Icaras racing line is followed by a Goteki ship model. I have that on at least two tracks.

It's not complaining, the game still works for me (I can set records, do BRs, etc.), but its still showing that it's not 100% stable with these glitches in it.