Character Movement Not Working Properly After Packaging (UE5.4)

Development Programming & Scripting Blueprint
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Hi everyone,

I’m currently facing an issue with my project in Unreal Engine 5.4. Everything works perfectly inside the editor — my third-person character moves, jumps, and interacts with objects without any problem.

However, after I package the project (for Windows), the character can no longer move or respond to input. The game launches correctly, and the level loads fine, but it’s as if the input system stops working entirely.

Here are some details about my setup:

  • Engine Version: Unreal Engine 5.4.2

  • Input System: Enhanced Input

  • Character Blueprint: Derived from BP_ThirdPersonCharacter

  • Packaging Settings: Shipping configuration, default maps correctly set

  • Plugins: Common UI, Enhanced Input, Lumen enabled

What I’ve tried so far:

  • Checked all input mappings and contexts

  • Made sure my DefaultPawnClass and PlayerController are set properly in the GameMode

  • Tested with both PIE and standalone game (works fine in both)

  • Rebuilt the project and deleted Saved and Intermediate folders before packaging

Still no luck.

Has anyone run into this issue before? Is there something different about how input is handled after packaging in UE5.4? Any advice or workaround would be greatly appreciated!

Thanks in advance for your help.