[Solved] Black screen when returning to lobby caused by K-Pop Warriors AI devices (UEFN)
Summary:
An infinite black screen occurred when returning to the Fortnite lobby after exiting a UEFN island. The issue was caused by a K-Pop Warriors AI device.
Environment:
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Unreal Editor for Fortnite (UEFN)
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Island using the K-Pop Warriors brand
Issue Description:
After leaving the island and returning to the lobby, Fortnite would get stuck on a black screen indefinitely. The game did not crash and no fatal error was shown.
Root Cause:
The issue was caused by the K-Pop Warriors Character Generator AI device.
Having this device in the project caused the session to fail when closing and returning to the lobby.
Final Solution:
- Removed all K-Pop Warriors AI devices from the project.
Result:
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The project now cooks and compiles correctly.
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Entering and exiting the island works as expected.
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The black screen no longer occurs when returning to the lobby.
Conclusion:
If a UEFN island using the K-Pop Warriors brand experiences a black screen when returning to the lobby, creators should review and remove K-Pop Warriors AI devices, especially the Character Generator, as they can cause critical issues when ending a session.