Editor will crash when Blueprint Details Panel is dragged across the Event Graph

Tools - May 6, 2015

When dragging the Details Panel in a Blueprint across the event graph the editor will crash. [Link Removed] ...

Crash when creating new projects or converting copies of old ones in Japanese

UE - Editor - UI Systems - Slate - Dec 4, 2014

There's a crash in FCharacterList::GetKerning() when using the editor in Japanese that is apparently fixed in one of these three changelists: CL# 2370014, 2370050, and 2370040 But they were not ...

Replace Reference feature is not replacing textures with new selected texture

Tools - Jan 4, 2017

Workaround:Open M_TableRound, move a node. Save the MaterialReopening the project seems to fix the issue Replacing the reference of the deleted table texture is rendering default material. Note T ...

Modifying a Static Mesh's "Y" Collision Rotation also modifies "X" and "Z" Rotation

UE - Gameplay - Dec 12, 2016

If the user modifies the "Y" Rotation value of a Static Mesh's Collision, the "X" and "Z" values are changed. The values will move +/- 1 point from their value prior to modifying the Y value. This ...

Error: CDO Constructor (DeprecatedGearVRControllerComponent): Failed to find /OculusVR/Meshes/GearVRController message launching onto Android from Mac

UE - Platform - XR - Jul 12, 2017

Only occurs launching onto device from Mac. Did not occur from windows. Error message is displayed on android device when launching QAGame QAEntry on to it:Error: CDO Constructor (DeprecatedGearVRC ...

bPersistentLines is not respected by DrawDebugLine

UE - Graphics Features - Nov 1, 2018

It looks like the line's lifetime is forced to the default line lifetime of one second if the provided lifetime is less than zero, which would be the case if calling the function with just enough pa ...

Virtual Bone effect is lost after re-importing mesh

OLD - Anim - Dec 31, 2018

After setting up a Virtual Bone on the skeleton and having it drive a Skeletal Control Node in an Animation Blueprint. Reimporting the skeletal mesh will cause the setup in the Anim BP to revert bac ...

Missing scale for tangent with morph target

UE - Editor - Content Pipeline - Import and Export - Nov 4, 2020

There is a bug in the fbx curve import code where we do not multiply the tangent by the scale parameter. Only the key value is currently scale. In 4.25 there was a hardcoded 0.01 scale but it was w ...

FConsoleVariableBase::SetOnChangedCallback behaves incompatibly with previous versions

UE - Niagara - Jun 17, 2021

FConsoleVariable::OnChangedCallback was changed to a multicast delegate in 4.26. Along with this, FConsoleVariableBase::SetOnChangedCallback was implemented to emulate a single delegate for compatib ...

Anim Graph will hang if the Draw Debug Sphere and Set node are connected and compiled

UE - Anim - Runtime - Anim Blueprints - Jun 8, 2023

anim blueprint hangs when compiled. Probably a cyclic issue when compiling. A workaround is to add a delay of any time between the set node and the Draw Debug Sphere node. Repros in the following v ...