Hair Cards shadow issue in Unreal Engine 5.4 (PC platform)

General Feedback & Requests
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Hi everyone,

We’re working on a project in Unreal Engine 5.4 (targeting PC platforms) and encountered an issue with Hair Cards.

When we enable Hair Cards, there’s no FPS drop, which is great, but the shadows for the hair are missing entirely. Shadows are missing in the game build, inside game editor we can see shadows. This has been a major roadblock for us. We suspect that a specific setting in the DefaultEngine.ini might be causing the issue, but we’re not sure which one.

Here’s what we’ve checked so far:

  1. Light sources are set to Movable with dynamic shadows enabled.

  2. LODs for Hair Cards are configured correctly.

Our main question:

Which settings in DefaultEngine.ini could potentially affect Hair Cards shadows?

If anyone has faced a similar issue or has insights into possible fixes, we’d appreciate your help. Thanks in advance!