Teleporting through nether portal sometimes results in being teleported to the nether roof #1148
Description
What behaviour is expected:
Teleport to the linked nether portal in the nether world.
What behaviour is observed:
Teleported above the portal on the nether roof.
Steps/models to reproduce:
- Build nether portal at y = 250 or so in overworld.
- Build/have connecting nether portal at y = 119 or so in nether. (Ensure there are no air block above or around nether portal - in my scenario one side of the nether portal is walled off).
- Teleport through portal (may take multiple attempts).
- End up on nether roof.
Plugin list:
EventDebug, DimensionTeleporter (provides command to teleport to different worlds, was just used to quickly find the nether portal)
Paper build number:
Occurred on 1434 and 1451.
Anything else:
May relate to lag, since a player was able to reproduce it on his first try (and it also happened in another nether portal, which was much lower in y value on both sides afaik), but took me multiple attempts back and forth through the nether portal (no waiting in between) to have it happen to me.
Here are server logs with EventDebug. Since I have nether roof void damage enabled that is what is damaging me. I've supressed EntityPortalEnterEvent and PlayerMoveEvent amongst other things. https://gist.github.com/RoboMWM/8c975378555debf8ce6b853442a6dab3
Here is my paper.yml https://gist.github.com/RoboMWM/a96bedcd243eab0315ecc0e93ef2ff9d A setting of note is disable-teleportation-suffocation-check: true along with delaying chunk unloads by 30s
I've been unable to reproduce with vanilla and craftbukkit. Just reproduced with CB and vanilla, see comment. Have not attempted with spigot yet.