Unreal Engine Issues

Crash When Substance Material Is Applied to a Mesh In HLOD System

Crash when Substance material is applied to a mesh included in the HLOD system. Working as expected in 4.19 CL# 4033788. Unable to test issue in 4.21 CL# 4339215 due to plugin dependency. Found in ...

Missing assignment/recursion in UHLODProxy::FindFirstActor can potentially lead to an infinite loop

User reports on the forums of being stuck in an infinite loop and noticed a dead branch in the titled function:The body of if (SubLODActor) doesn't actually do anything, guaranteeing an infinite loo ...

Infinite Loop When Generating HLOD Clusters

The HLOD system gets stuck in a infinite loop when building.  Comment from the user: ++I've tracked it down to this code: const AActor* UHLODProxy::FindFirstActor(const ALODActor* LODActor) { a ...

Merging negative-scaled actors breaks materials

Materials are broken when merging a mesh with another that has negative scale Licencee states that bisMirrored in FMeshMergeHelpers::TransformRawMeshVertexData seems to be involved. Does not occur ...

Unclear warnings when generating clusters in persistent level when sublevels have HLOD disabled

If the user attempts to generate HLOD actors in a persistent level, when the sublevels have HLOD System disabled, they will receive the following warning: WorldSettings Hierarchical LOD System is di ...

If you add a cluster to another level to create HLOD and open a hierarchical outliner at the original level, the original level crashes.

Please check the attached file. https://udn.unrealengine.com/questions/417308/hlod-%E3%82%92%E4%BD%9C%E6%88%90%E3%81%99%E3%82%8B%E3%81%9F%E3%82%81%E3%81%AE%E5%88%A5%E3%83%AC%E3%83%98%E3%83%AB%E3% ...

Crash on merge actor when Use specific LOD Level

Merge Actor crash when specifying Use specific LOD Level, and the actor has a collision component ...

HLOD crash when dragging and dropping actors into their own cluster in the HLOD outliner - ALODActor

Performing a launch on to windows, and then enabling world HLOD and opening the outliner will crash the editor

Generated HLOD Actor not Registered when using the Size Map Tool

When using the Size Map to view the memory consumption of a generated HLOD actor, it reports it as missing. This could serve to be problematic when using a large number of HLOD actors to optimize t ...