# Join-in-progress players on a Physics (Beta) island sometimes can't walk forward until they respawn

**URL:** <https://forums.unrealengine.com/t/join-in-progress-players-on-a-physics-beta-island-sometimes-cant-walk-forward-until-they-respawn/2853018>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, Status-NeedsTriage, fortnite\
**Created:** [November 9, 2026, 7:52pm UTC](https://forums.unrealengine.com/t/join-in-progress-players-on-a-physics-beta-island-sometimes-cant-walk-forward-until-they-respawn/2853018 "2026-11-09T19:52:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![finnppp](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@finnppp](https://forums.unrealengine.com/u/finnppp)\
**Post date:** [November 9, 2026, 7:52pm UTC](https://forums.unrealengine.com/t/join-in-progress-players-on-a-physics-beta-island-sometimes-cant-walk-forward-until-they-respawn/2853018/1 "2026-11-09T19:52:10Z")

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### Summary

On my physics-enabled island (Enable Physics (Beta) ON, Join in Progress Behavior: Spawn Immediately), players sometimes spawn unable to walk forward, mostly when they join a match that is already running. They creep at about 1 cm/s and sprint won’t start, but strafing, jumping and crouching still work. Respawning with ESC \> Respawn fixes it straight away.

Every time this happened, the client log shows the join stasis being queued on the local Newton pawn before its Chaos Mover has a Stasis mode. The warning `LogChaosMover: Warning: Attempted to queue an unregistered movement mode: Stasis on owner PlayerPawn_Newton_C_…` appears 13-42 times within about 2 seconds, interleaved with `Not safe to respawn … due to incomplete streaming`. Joins without that burst are fine.

This looks like the same bug as FORT-1128432, which was closed as not reproducible: [Players intermittently get a high-gravity / cannot-move state on a physics-enabled island - persists across matches until Fortnite is restarted](https://forums.unrealengine.com/t/players-intermittently-get-a-high-gravity-cannot-move-state-on-a-physics-enabled-island-persists-across-matches-until-fortnite-is-restarted/2737394)

### Please select what you are reporting on:

Unreal Editor for Fortnite

### What Type of Bug are you experiencing?

Character

### Steps to Reproduce

1. Use an island with Enable Physics (Beta) = ON, Join in Progress Behavior = Spawn Immediately and Spawn Location = Spawn Pads. My live island 3237-5655-5578 has these settings.
2. Player A starts a match.
3. Player B joins that running match as a join in progress, for example by leaving and rejoining the same server.
4. B spawns while their level is still streaming, and the server applies the join stasis (`Applied Stasis Mode [3]`). In some of these joins (roughly 1 in 5-10), B’s client logs the burst of “unregistered movement mode: Stasis” warnings. From then on, B can’t walk forward.
5. B presses ESC \> Respawn, and movement is normal again.

### Expected Result

A player who joins in progress can move normally after spawning.

### Observed Result

- Forward movement barely works (~1 cm/s) and sprinting doesn’t work either.
- A/D/S, jump and crouch work.
- It lasts until the player respawns.
- Unlike the original thread, in my case a respawn is enough, no client restart is needed.

### Platform(s)

All Platforms

### Island Code

3237-5655-5578

### Video

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/2/d/52dd970b117e48e773d810fcb3b55b2315c5038b.jpeg "Movement Bug") ](https://www.youtube.com/watch?v=_Gzlk5kHEyY&t=3s)

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**Author:** ![Bug-Reporter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bug-reporter/32/997076_2.png) [@Bug-Reporter](https://forums.unrealengine.com/u/Bug-Reporter)\
**Post date:** [November 11, 2026, 8:00pm UTC](https://forums.unrealengine.com/t/join-in-progress-players-on-a-physics-beta-island-sometimes-cant-walk-forward-until-they-respawn/2853018/4 "2026-11-11T20:00:33Z")

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FORT-1192192 has been ‘Closed’ as a duplicate of an existing known issue. Origin Issue: FORT-1042630

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<div class="post-metadata">

**Author:** ![Bug-Reporter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bug-reporter/32/997076_2.png) [@Bug-Reporter](https://forums.unrealengine.com/u/Bug-Reporter)\
**Post date:** [November 11, 2026, 8:00pm UTC](https://forums.unrealengine.com/t/join-in-progress-players-on-a-physics-beta-island-sometimes-cant-walk-forward-until-they-respawn/2853018/5 "2026-11-11T20:00:34Z")

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FORT-1042630 has been added to our ‘To Do’ list. Someone’s been assigned this task.