Unreal Engine Issues

Latent Actions do not execute if the blueprint name contains non-english characters

REGRESSION: Issue started occurring with 4.25.4 Blueprints with non-English characters in their name will not trigger latent actions. The following warning appears in the log in this case: LogScr ...

Linker exception opening project project after updating to 4.25.4

User has encountered an exception opening their project when they updated from 4.25.3 to 4.25.4. No repro, log or test project is given at the time. ...

Can not assign texture in directory with Chinese characters to material instances.

Editor crash when ticking then unticking "Toggle Visualization" in a Google Resonance Spatialization Settings window

This is a user reported crash, I was able to re-create in 4.25.4. I'm also assuming this happens in 4.26, however there is a current blocker that stops me from opening this project in 4.26. Linked ...

FBX re-import: only non fbx metadata should be restored during re-import

The imported metadata is prepend with "FBX." so we can easily know if a metadata was imported or created in the editor. ...

Back-face culling not working when translucency is set to Ray Tracing

While enabling Ray Tracing from the start of the project, when user sets GlobalPostProcess Translucency to Ray Tracing, the back-face of the plane is not culled. However, when the translucency is se ...

Material Editor node search returns unexpected results

Issue reported by community member through UE Bug Submissions ...

GPU System will kill existing particles if activate is called after it has be deactivated

Deactivating and then reactivating the same GPU system will cause existing particles to die. ...

Crash occurs in Hierarchical Instanced Static Mesh of Mesh with MinLOD set to 1 or higher

I have attached a reproduction project with the above settings.[Link Removed] It crashes when packaged, launched and moved in-game. This issue seems to occur when there is an object in the Unbuilt ...

Unable to move some blueprints that have breakpoints

I was attempting to do some reorganization and received a cryptic error when one of the assets could not be saved. Everything compiled cleanly and could be saved, just not moved. Eventually I figur ...