Crash occurs when debug filter pop out tab is clicked while in line tab is present

UE - Editor - UI Systems - Slate - Jun 29, 2017

There is a crash that is occuring when resizing windows with the debug filter popped out. The Debug filter that gets popped out is persistant and does not disappear when the the in line option appea ...

[CrashReport] UE4Editor_Engine!ULevel::GetWorldSettings() [level.cpp:1781]

Tools - Aug 22, 2016

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: WorldSettings != ...

[CrashReport] <unknown module>!UE4Editor_Core!FDebug::AssertFailed()

UE - Foundation - Core - Mar 28, 2016

Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 678] Array index out of bounds: 0 from an array of size 0 Source Context: 80 } 81 else ...

When move selected foliage to level, Foliage can not move to level.

UE - World Creation - Worldbuilding Tools - Foliage - Jul 18, 2017

With 4.15, I can move Foliage to "Sublevel B", but I can not move it with 4.16. It seems to be affected by the update in 4.16 (New: When moving a foliage asset to a new level, you will now be prompt ...

GPU Particles Don't Spawn at Correct Location When Used as Collision Event Receiver

UE - Niagara - Oct 8, 2018

GPU emitter doesn't spawn particles at expected location when it is an event receiver. Also disabling Interpolate Spawning in the emitter properties affect this behavior as well, making the particle ...

[CrashReport] UE4Editor-Kismet.dylib!FTabInfo::OnMouseDownHisory(FGeometry const&, FPointerEvent const&, TWeakPtr<SMenuAnchor,()

UE - Platform - Apple - Jul 20, 2017

This is a common crash affecting Mac users in 4.16. It has occurred since at least 4.13 ...

[CrashReport] UE4Editor_Engine!FTexturePlatformData::GetNumNonStreamingMips() [texturederiveddata.cpp:1260]

UE - Graphics Features - Apr 10, 2017

Was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: Mips.Num() > 0 [Link Remov ...

[CrashReport] UE4Editor_CoreUObject!UObjectBase::IsValidLowLevelFast() [uobjectbase.cpp:294]

UE - Foundation - Core - Aug 22, 2017

This is a common crash in the 4.16 and 4.17 releases. User DescriptionsWriting a custom component in C++. Hotcompiled it through VS2017. Had the BP editor open with a class derived from that compo ...

LayeredBlendPerBone without BlendRootMotionBasedOnRootBone exaggerates root motion

UE - Runtime - Animation - May 27, 2023

When BlendRootMotionBasedOnRootBone is false, the LayeredBlendPerBone is aggregating root motion of the child poses ontop of the base pose root motion.  (ie. if the first child pose's blend weight i ...

FindCollisionUV always returns False on Skeletal Meshes

UE - Gameplay - Dec 14, 2016

FindCollisionUV always returns False on Skeletal Meshes User Description: In UE 4.14.0, the blueprint "Find Collision UV" functions doesn't work properly with Skeletal Meshes. While it works fine ...