After using MTRmod's archive & server will appear unknown entity, also can't tp to this entity above, but has been attached to the player, after looking up and found to be mtr:seat, please ask this entity has not been removed, why still exist?

More info: mtr:seat may spawn a pig around player, and many servers and players mentioned this issue.

The information on mcmod.cn writes that the entity had been removed in 3.0.0-beta7.

After using MTRmod's archive & server will appear unknown entity, also can't tp to this entity above, but has been attached to the player, after looking up and found to be mtr:seat, please ask this entity has not been removed, why still exist?

it's used for rendering the trains, there's not really much you can do about it

Please see #341