Some meshes, like Floor_Grate_3, have an in-game flicker and light incorrectly. #12

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opened 2025-12-21 13:23:10 -06:00 by parvan · 1 comment

parvan commented

2025-12-21 13:23:10 -06:00

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How to reproduce:
Make sure the lighting is built, spawn a character, and look for the meshes that appear to "flicker" when they shouldn't have that effect or meshes that aren't lit correctly or are glowing. Floor_Grate_3 is the major culprit.

When this started:
This appeared in an engine upgrade before 4.26.

**How to reproduce:** Make sure the lighting is built, spawn a character, and look for the meshes that appear to "flicker" when they shouldn't have that effect or meshes that aren't lit correctly or are glowing. Floor_Grate_3 is the major culprit. **When this started:** This appeared in an engine upgrade before 4.26.

parvan added this to the Release Cardinal-Fall on Unreal 5 milestone 2025-12-21 13:23:10 -06:00

parvan added the

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labels 2025-12-21 13:23:10 -06:00

parvan added this to the (deleted) project 2025-12-21 13:23:10 -06:00

parvan modified the project from (deleted) to Unreal 5.1 | Release 1

2025-12-21 19:33:45 -06:00

parvan changed title from ~~Some meshes, like Floor_Grate_3, have an in-game flicker.~~ to Some meshes, like Floor_Grate_3, have an in-game flicker and light incorrectly.

2025-12-21 19:41:42 -06:00

parvan added the

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labels 2025-12-24 10:51:16 -06:00

parvan commented

2026-01-19 22:20:25 -06:00

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The issue will be kept open here, but marked as fixed for Project Release 1 so we can get that released.

Would anyone else like to fix this one?

Not sure of the cause, but this can be fixed temporarily by selecting the mesh in the map and going into modeling mode, then selecting auto-uv and then pressing undo. This fixed the lighting issue but likely only until the lighing is rebuilt again. (We assume) The issue will be kept open here, but marked as fixed for Project Release 1 so we can get that released. Would anyone else like to fix this one?

parvan modified the project from Unreal 5.1 | Release 1 to Unreal 5.1 | Release 2

2026-01-21 16:07:45 -06:00