NFS Unbound crashes if I change parts on BRZ.

Product: Need for Speed: Unbound
Platform:PC
Summarize your bug Everything to do with the performance parts turn in to tire parts and all the item that i bought was un-equip and the game will crash if you try to change the parts This is killing the vibe for me i really enjoy this game and this is what i get if there is anyway that i could start a new game or maybe this could be fix i would be happy oh and it's only 1 car The BRZ i had to use it with no parts until a free car came along and the other was fine can customize everything.
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? I don't really know it started when the car bug out and had no wheels and bumpers.
What happens when the bug occurs? Game Crashes
What do you expect to see? to be fixed!

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 Everything to do with the performance parts turn in to tire parts and all the item that i bought was un-equip and the game will crash if you try to change the parts This is killing the vibe for me i really enjoy this game and this is what i get if there is anyway that i could start a new game or maybe this could be fix i would be happy oh and it's only 1 car The BRZ i had to use it with no parts until a free car came along and the other was fine can customize everything.

full Palace Edition of Need for Speed™ Unbound