Unreal Engine Issues

Exporting and Importing Alembic File from Maya to Unreal Adds Extra Frame to Animation

When importing an Alembic file into Unreal Engine an extra frame is added automatically to the frame range in the import settings -abc file has been brought into Maya 2016 and exported again as an ...

[CrashReport] UE4Editor_UnrealEd!UEditorEngine::CheckForWorldGCLeaks()

This is a common crash occurring for users in 4.16. It is spread out among around 60 different CrashGroups in CrashReporter, because every case has a slightly different callstack. This appears to ...

Crash in persona editor when set postprocess animinstance using Linked Layer Anim to skeletal mesh

Crash when set PostProcessAnimBlueprint in persona editor. Related to [Link Removed] Closed , [Link Re ...

Adding an LOD while in PIE or Simulate Cauases the Editor to Crash

If you add an LOD while the editor is simulating or playing, the Editor Crashes. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 6063286 ...

Animation Blueprint Editor Crashes on Compile if the Debug Instance Selection is Other Than No Object or Preview Instance

-Crash occurs when debug is set, and anim Blueprint is compiled while actor blueprint is selected -When reopening project, imported assets are no longer there -Reopening project after crash, the opt ...

When welding collision between Third Person UE4 Mannequin's left foot ball, to left foot in physics tab results in an Engine crash.

When using a Third Person UE4 Mannequin, Opening the Physics asset tab, and welding the collision between left foot ball, to left foot results in an Engine crash. Additional Note: Using the same ...

VirtualTexture performance is much worse on SM6 than SM5

5.3 crashes when loading a map with an actor that had the class of one of its components changed

Create a blueprint based on actor, give it a SceneComponent named ExampleComp (BP_TestActor) - this should be the blueprints only componentCreate a new level (TestMap), place an instance of the bluepr ...

Handle fracturing a destructible mesh when the source mesh has been deleted without a crash.

When attempting to fracture a destructible where the source static mesh has been deleted we get a crash in APEX. APEX can't seem to find any root leaf nodes to begin fracturing upon. This does not ...

Foliage Loses Dynamic Shadows from Moveable Point LIght at given Light to Mesh Height

A Movable Point Light placed in the center of a field of foliage meshes will render shadows only at certain heights and going above those heights will cause the shadows to completely disappear. [Im ...