Summary
Bottom line: When you teleport a player that is using the First Person Camera Device, they will be facing the way they were before teleportation, no matter what you do.
The First Person Camera does not allow you to rotate a player with Teleporter Devices (even with force player to face in teleporter direction), fort_character.TeleportTo[:vector3, :rotation], or player.Respawn(:vector3, :rotation). The only way to rotate a player while registered with the First Person Camera Device is player input.
I have been able to remove the player from the First Person Camera, rotate them, and add them back to the First Person Camera but that introduces further bugs associated with assigning the First Person Camera Device. If you are respawning or teleporting when you are assigned to a First Person Camera device, the First Person Camera Device seemingly snapshots the state of your player mesh and material in that moment; resulting in invisible player models from your POV, the arms and weapon being way too far left (as shown in the attached X Article), or any form of blue that the respawn or teleport VFX that is applied to a player on those actions.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Devices
Steps to Reproduce
1a. Assign players to a First Person Device at the start of a round.
2a. Take note of the way your player is facing before teleportation. An easy way to test this is to stare at the sky or a known direction.
3a. Attempt to Teleport the Player with Teleporter Device (force player to face in TP direction), fort_character.TeleportTo in Verse, or respawn them with player.Respawn() in Verse.
4a. Observe their rotation after the teleportation. 95% of my extensive test results have resulted in the player facing the way they were before the teleportation and at least some of the 5% of successful teleports could be a result of a coincidence.
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1b. Assign players to a First Person Device at the start of a round with it set to remove the Player from the device on Elimination.
2b. Respawn the Player from a fort_character.EliminatedEvent or a elimination_manager.EliminatedEvent and reassign the First Person Camera Device at various stages after the respawn to observe how the player model is shown to the player.
( note: I experimented with Sleep(0.0), Sleep(0.15), Sleep(0.25), Sleep(0.5), Sleep(1.0), Sleep(1.5), Sleep(2.0), and Sleep(2.5) before I found that you must wait ~2.5 seconds for the VFX to complete from respawn/teleportation actions to finish their cycle )
3b. Wait 2.5 seconds after the respawn and toggle the First Person Camera Device off/on again to see that it will correct the issue with the player model.
Expected Result
a. Player is facing the direction you rotate them to with a Teleporter Device with Force Player to Face in Teleporter Direction set, fort_character.TeleportTo[:vector3, :rotation], or player.Respawn(:vector3, :rotation).
b. Player model is reapplied correctly when the Player is added to the First Person Camera, regardless how soon-after a Respawn or Teleportation.
Observed Result
a. The player is facing the direction they were facing before they were teleported. The only rotation the First Person Camera Device seems to respect is from player input or the original rotation of the player when the camera is first registered to that player.
b. The Player model is applied with its current state/material to the First Person Camera while a Player is invisible or wearing the VFX of a Respawn or Teleportation effect.
Platform(s)
PC
XBox
Playstation
Switch
Mobile
Island Code
5882-5434-4636 (private)
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Video
I have video captures but they are not very informative as to what I am doing in Verse for each experiment.
Additional Notes
This bug is relevant for UEFN, Devices, and Verse.
Please see my X Article on this issue. x.com
My use case for how I came across this was a custom respawn system that uses a combination of Player Counter Zones and corresponding Blueprints to mark the Respawn Locations/Rotations aka Transforms that are associated with those zones. I disqualify zones that are occupied and respawn players randomly in safe zones; however I am forced to live with them most-likely facing the wrong direction, have no hands, skewed POV, blue hands, or I have to slow it down to 3 seconds in order to remove and reapply the camera. I have chosen to live with the wrong rotation, for now, but it is really detrimental to the players experience.
Please reach out to me if any further clarification is needed. I would love to help get this resolved ASAP!