Unreal Engine Issues

Automation Wait for Loading node crashing with fatal error in shipping build

Using the Automation Wait for Loading node in a shipping build causes a fatal error when the node is called. This issue is occurring in Binary  //UE5/Release-5.2 @ CL 25360045  This issue is occur ...

[AI] AgentToNavDataMap still contains entries when cleaning up navigation system

The navigation system has errors in the log for agents still being mapped to navigation data in CleanUp. This appears to stem from agent step height being recalculated in ARecastNavMesh::SetConfig i ...

Incorrect rendering result on some geometry and materials in grouped components in SKP imports

Reported in SF [Link Removed] In Twinmotion 2026.1, when importing certain SKP files with grouped components, materials may render incorrectly on some grouped components and will appear with a dark ...

Alembic import causing a crash

Importing this test asset will cause the editor to crash when using any of the Alembic Import options. I did notice that the source test asset does have 6750 frames but when going through the impo ...

Actor Scale is not included when converting from Matinee to Sequencer

Actor Scale is not included when converting from Matinee to Sequencer ...

The frame rate could be locked to around 45 occasionally on 90Hz android device.

Matinee not triggering when moved from one level to another

It appears that if you create a Matinee in a Sublevel, and then subsequently move the matinee between levels. It will not keep associations with the attached actors in the Matinee and not trigger e ...

Painted Vertex Color on Meshes in BPs do not save when Movie is generated from Matinee

When you render out a movie from a Matinee, the painted Vertex Colors on a Blueprint does not render, the meshes in the Blueprint revert to imported vertex color. Also Reproduced in 4.8.0 and Main ...

SceneTexture:Scene Color node renders black in Standalone, Launch On and Packaged Game

When using a Blendable to render SceneTexture:Scene Color into the Post Process, it appears to render as expected in PIE and Simulate, but when viewed in Standalone, Launch On or a Packaged Game the ...

UMG causes crash when running as a client on a dedicated server

If the settings for the multiplayer options are set as follows: Number of players : 1 Run Dedicated Server : True (Checked) Use Single Process: False (Unchecked) Editor Multiplayer Mode: Play As Cl ...