Unreal Engine Issues

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

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 ...

Level sequence does not play when using async load for level

The problem seems to be that FLevelSequenceBindingReference::Resolve () fails due to LoadPackageAsync() called in the FStreamableManager::StreamInternal() function. The licensee reports that the pro ...

Adding a water island when substrate is true will flatten the landscape

When a landscape weightmap or heightmap update is required, ALandscape::ResolveLayersTexture is called via the ALandscape::UpdateLayersContent() The problem appears to be that all pixels in the Out ...

When creating a new NiagaraSystem using existing system, the DefaultEffectType set in ProjectSettings is not reflected.

When creating a new NiagaraSystem, the DefaultEffectType set in ProjectSettings should be reflected. If another EffectType is already set, it should be respected. The problem here is that when creat ...

Auto Exposure Compensation Curve issue when switching from Manual to Histogram

When switching the Camera's Exposure Metering Mode from Manual toHistogram, the exposure level resets and takes time to settle. The Licensee has a proposed code change that would fix this issue. Als ...

Skylight Intensity causes brightness discrepancy between the pathtracer and realtime renderers

In a scene without a sky sphere, increasing the skylight intensity will cause the sky to brighten in the pathtracer. Other renderers do not brighten the sky, and the intensity increase is applied on ...

Opening particle system crashes editor

Opening a specific particle system crashes the editor. If the particle system is used within a level and the level is played, the editor will crash with no callstack. Logs are attached. Frequency: ...

Project Launcher Back Icon Disappears when 'Use Small Toolbar Icons' is Enabled

With 'Use Small Toolbar Icons' checked in the 'Editor Preferences', the 'Back' button within the 'Project Launcher' disappears. The expected would for the button to get smaller and not vanish entir ...

Setting the Falloff Distance of a Sound Wave/Cue to 0.0 will no longer Play Sound

As the title suggests, whenever you add a Sound Cue or Wave to a level and set it's 'Falloff Distance' to 0.0 the sound will no long play. I have attached a project to provide a simple regression t ...