The brake balance is reversed again (the way it was in FM5). That means that moving the slider to the rear increases front brake pressure, creating understeer. Move the slider to the front to increase rear brake pressure, creating oversteer.
I reported it when the game came out, but given the current rate of bug fixing…don’t hold your breath.
Reported it as well, screws up all of my drag race set-ups from Forza Motorsport 7 (after their big push for drag racing feedback)
I have only built a small handful for FH4 because of this