When I spawn a vehicle, I can move freely, but when I go somewhere and completely stop it, I keep glitching inside the vehicle and can't move or move very slowly.
The trailer works fine but the main RV doesn't
Bug video: https://streamable.com/k5kt6f

Edit: This happens to all vehicles sometimes.

One more thing: Sometimes this happens, sometimes it works fine, I thought it had like 0.1km/h speed but that's not the case, still don't know what causes this.

This is due to our hitboxes being a little weird sometimes, and it isn't something that I think we can fix. There are some big changes coming with the next update, though, and one of them could help it a bit.

I'm closing this, as I've done all I can do with the hitboxes on my end in V19.0.0. The rest is up to pack authors to make proper dismounting positions that don't collide with hitboxes.