Problems after adding extra cars and/or extra tracks

[No Surrender]

Hello!

I've just added some extra cars and extra tracks (like I've did before) to GT Legends. However, this time, in some combinations of tracks or cars, the game starts to load the track and suddenly cracks down.
I've try to reinstall GT Legends but the problem remains, even after removing the added extras.
Does anyone had a similar problem?
How can I solve it?

Thanks