[MP4][Stadium] Car "crashes" at 4-5-5 (4-5-4)

[Zeraxex]

Here are 2 Exacmples:
https://youtu.be/OuUk8FeKqog

At the first clip the problem is that the front of the car goes weirdly up in the air, then I had low speed because of the landing.
At the second one the problem should be more obvious.

It happens really rarely but still can destroy a run.
The first Clip was using 4-5-5, the second one I forgot. And It's hard to reproduce. it's quite random, so I don't know if the problem only is at 4-5-5 or also at 4-5-4.