Forum Discussion
Check if right clicking the game in Origin and then choosing Repair helps.
Steam, verify files: https://help.steampowered.com/en/faqs/view/0C48-FCBD-DA71-93EB
Thanks.
What I have found out personally for myself how to circumvent the bug:
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Do not make the shapes too big where it goes way beyond the car
Do not edit the liveries while in a lobby
(This includes customization in general)
Do not make the shapes pitch black and only rely on the color selection screen rather than going 0% or 100% for black / white
If another car in your garage becomes black after editing/creating livery for a new car then you have to go back to the new one and find out what's wrong. (Usually it's the color or the shape being too big or even placed beyond the car's view)
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I routinely use two PCs to check if my liveries are fine on both ends. Because there have been times where it looks fine on my end and broken on the other. But so far it's been working 100%)