Not possible to tune for Race A with adjustable settings

[Bro_46n2]

Hi folks,

I'm keen to use a tune for the Daily Race A at Fuji currently taking place this week. The game provides one of two Porsches (both N400) for which I wish to use the Porsche 911 GT3 (997) '09. I have saved a tune for this exact car in my Garage however, when it comes to the qualifying or race, I do not have the option to tune the car nor apply my saved tuning. The settings indicate that tuning is possible (BoP: none, Settings: Adjustable). How do you tune the car from the race menu or apply a saved tune?

 

[Bro_46n2]

It seems the game altered the suspension settings. No other settings can be changed by the user. This post can be removed if it's not relevant.