Good evening,
We have carried out many tests and it seems that the problem occurs when one vehicle is attached to another vehicle with the attachTo command.
When the base vehicle and the attached vehicle are spawn and driven by the same person, no problem but when it is different people who do this, the desynchronization concerns appear for the passages and do strangest things.
Hope this helps you, have a good evening and good luck!

In any case, BI is aware of this bug, they made a Twitter post and on the Arma III Discord, they said that they dealt with this problem in the day.

Yes, I confirm too. That's enough disturbing mdrr
Only obfuscated addons does not work. Thanks, Tom