The Bug
Unlike every other entity, player passengers do not track their mounted vehicle position accordingly when the vehicle in question is being teleported. This issue did not occur in 1.19.4 or prior.
How to reproduce
Place an active repeating command block with the command below:
execute as @e at @s on passengers on vehicle run tp @s ^ ^ ^1The issue is more visible when the new position is relatively superior or equal to 1
Spawn any entity
Mount an entity with the ride command:
ride @s mount @e[limit=1,sort=nearest,type=!player]
Linked issues
Attachments
Comments 2
This doesn't clone MC-262324 but rather duplicates it.
I have tested this issue in both 1.20 pre-release 2 and pre-release 3 and it no longer works in pre 3
Clone of MC-262324 and MC-261202 which resolves display markers and mob vehicle discorrelation with player passengers.
Additionally, I can confirm similar behaviour manifesting in every other mountable vehicle (e.g. boats) to have also been fixed in 1.20-pre3.