Unreal Engine Issues

Windows Game Input - DualSense/DualShock controllers DPad button repeat events behave unexpectedly

Cannot move instances of a hierarchical static mesh component in the blueprint editor viewport

Can move individual mesh instances of a regular instanced mesh component in the blueprint editor, but not hierarchical ones. Originally reported as a pull request in [Link Removed], but we rejected ...

Crash playing a HapticFeedbackEffect_Soundwave with no sound assigned

Crash attempting to use a HapticFeedbackEffect_SoundWave with no sound set on it (i.e. a newly created one.) Found on: 4.13.1 Binary CL-3120228 //UE4/Release-4.13 CL-3123398 Similar to [Link Remo ...

Crash on UObject::ProcessEvent after 4.7 update

Crash Report [Link Removed] Bugg 38910 After updating project from 4.6.1 to 4.7, user experiences unexplained crash when playing in editor. *In addtion to the crash report, the user provides a lot ...

Inconsistance Line Trace behavior

Line trace component appears to return a hit result even when the trace should not have had anything to hit. Attached project shows line trace start & end points. Even when the trace doesn't overla ...

Engine crash from opening level bounds blueprint after project reopens

There is a crash that is occurring when a blueprint with the parent of "Level Bounds". The crash occurs when the project is closed and reopened. Opening the blueprint immediately after it was create ...

MS_VertexAnimationTools_MorphTargets are not deforming and reforming

The Material should be contracting and expanding if it is working correctly, but after version 4.16 it is not. Instead it is solid in appearance in the material editor viewport. Below I have linked ...

Changing LODBias on landscape sections causes grass type placement issues

Changing LODBias on landscape sections causes a grass type placement issues. The grass will be floating and rotated incorrectly. Found in 4.18 CL# 3832480,  4.19 CL# 4033788, 4.20 Preview 1 CL# 4 ...

Enabling Skeletal Mesh 'Per Poly Collision' crashes the Editor

When a Skeletal Mesh isn't assigned, enabling Per Poly Collision on the Skeletal Mesh Component causes the Editor to crash. This issue was reported and tested in 4.20.1 (CL-4233996). This issue was ...

Ensure fires during nativized build while packaging for any BP class based on UAnimNotify

Cooking will fail while attempting to convert a non-data-only Blueprint class based on the native UAnimNotify class when Blueprint nativization is enabled. Workaround in lieu of a fix would be to e ...