# Input Trigger Device doesn't work on mobile when joining a game in progress

**URL:** <https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405>\
**Category:** Issues and Bug Reporting\
**Tags:** mobile-device, device, fortnite-creative, unreal-editor-for-fortnite, Android, fortnite\
**Created:** [March 17, 2024, 11:24pm UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405 "2024-03-17T23:24:48Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![ItsJacky](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/itsjacky/32/913179_2.png) [@ItsJacky](https://forums.unrealengine.com/u/ItsJacky)\
**Post date:** [March 17, 2024, 11:24pm UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405/1 "2024-03-17T23:24:49Z")

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### Please select what you are reporting on:

Unreal Editor for Fortnite

### What Type of Bug are you experiencing?

Devices

### Summary

Input Trigger Device doesn’t work on mobile phone (Android) when joining a game that is already in progress.

### Steps to Reproduce

1. Add an Input Trigger Device to the Island with settings that will affect the player and any registered player behavior setting.
2. Upload to Private Version.
3. Use any device to start a game on the island.
4. Observe that the input trigger device is working fine for the first device.
5. Use a separate mobile device (e.g. Andoid) to join the same island session.
6. Observe that the input trigger device is not being displayed on the screen.

### Expected Result

Input Trigger buttons/description text should be displayed when the player is registered to the Input Trigger Device.

### Observed Result

Input Trigger buttons/description text is not being displayed on the screen and thus not usable.

### Platform(s)

Samsung Galaxy S9 - Android 10

### Island Code

n/a

### Additional Notes

I have verified that Input Trigger Device is working fine when joining a game in progress using PC (keyboard & mouse) and this issue appears to only affect Mobile.

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<div class="post-metadata">

**Author:** ![jhrach700](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jhrach700/32/1075348_2.png) [@jhrach700](https://forums.unrealengine.com/u/jhrach700)\
**Post date:** [June 17, 2024, 3:57am UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405/2 "2024-06-17T03:57:00Z")

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I have the same exact issue, were you able to find a solution? I made sure to call the Input Trigger’s Register function on the newly added player as well but it still isn’t working. This takes away a lot of functionality from my game on mobile and is nearly game breaking, would appreciate if this bug got fixed! Or if someone found some trick to help solve, please let me know thanks!

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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:** [August 30, 2024, 11:12am UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405/3 "2024-08-30T11:12:54Z")

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FORT-785258 incident has been created. Status is ‘Unconfirmed’.

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**Author:** ![JeffreyBlanz](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jeffreyblanz/32/1074797_2.png) [@JeffreyBlanz](https://forums.unrealengine.com/u/JeffreyBlanz)\
**Post date:** [March 6, 2025, 5:43pm UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405/4 "2025-03-06T17:43:20Z")

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This was fixed

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<div class="post-metadata">

**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\
**Post date:** [March 7, 2025, 2:10pm UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405/5 "2025-03-07T14:10:19Z")

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> [@Bug-Reporter](#):
>
> FORT-785258

Closing as fixed

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<div class="post-metadata">

**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\
**Post date:** [March 7, 2025, 2:10pm UTC](https://forums.unrealengine.com/t/input-trigger-device-doesnt-work-on-mobile-when-joining-a-game-in-progress/1759405/6 "2025-03-07T14:10:23Z")

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