Forza 6 V8 Supercar Divison in private lobbies bug

So a few of my friends and I got into a private lobby and decided to race the V8’s for some fun. There were 5 of us and the rest was drivatars, but all the drivatar v8’s were only the 97vf or the amg merc, thought I’d put this bug up here so in the little chance it might get fixed.