IDK when exactly this has began happening
In seasonal championship, Boost Pad either works or doesn’t.
Right now im in By The Fire, Last Week Canyon And On, all month i seen AI not miss a Boost Pad while i slowly not get Boost as i pass over Boost Pad.
Its not that bad, until you cant jump over Volcano Pass Hazard Sprints, Boost to make Jump In this weeks Seasonal Championship.
I have looked all over and cant find a known issue about it or how to fix
Im on PC bought through MS version
Anyone else having same issue and will forza fix it?
Not had that happen yet, I think ?
Oh wait… never mind lol. Was thinking boost jump pad in event not the basic speed boosts.
Still, another way to get it done, play on a team, presuming you were doing it solo (I often do). That way if it glitches on you odds are still good the team will score enough to win.
Which won’t help for PR stunts though 
Boost pads don’t work for me if I am using my wheel. If I use the controller they work.
G920 wheel on the XB One-X
Bet, G920 is poorly supported. Im on 920 also
Now i wonder are anymore wheel users having the same problem.
Does forza know of it and will there be a fix
Have a dig through the Known Issues list :
Forza Horizon 5 – Forza Support (forzamotorsport.net)
If it’s not there file a bug report on it, for what it’s worth, at least then they’ll know and maybe there’s a chance it’ll get looked into.
FWIW noticed this on a quick look :
For Logitech users, especially G920 and G29, you have to install the Logitech Software from the website; this is quite important if you don’t install it, the G920 is picked up as a different vendor product identifier (VIDPID), and its functionality in the game is compromised, both for FFB and for buttons/switches.
Doesn’t mention your issue but could be related.