Unreal Engine Issues
Unreal Engine Issues
When used with First Loop Start Frame Offset and Use Animation Blueprint, the character will alternate between the specified animation and the reference pose
UE - Anim - Sequencer - Anim in Engine - Jan 30, 2023If you use StartFrameOffset set to 1 or higher in conjunction with the Use Animation Blueprint, the character's animation will be rough towards the end of the section. Specifically, it seems that th ...
Paper2D performance regression due to TArray resizing
UE - Graphics Features - Aug 16, 2019We've noticed after upgrading our heavy Paper2D project to 4.22 that tilemap performance has been massively degraded compared to previous versions. After some digging we found out that it's due to a ...
Crash on map change with non-null values for GPropertyColorationClass and request customizable property coloration color
UE - Editor - Workflow Systems - Aug 7, 2023This was found by a customer through a UDN, and they offered the fix for it, as well. The basic steps to reproduce the crash are as follows:call GEditor->SetPropertyColorationTarget(...) somewhere i ...
Volumetric Cloud + Sun ghosting artefacts around a static cube
UE - Graphics Features - Feb 3, 2022Video of the issue here - [Link Removed] 4.27 and 5.0 seem to display slightly different outcomes. In 5.0 the sun only appears very close to the cube, whereas in 4.27 is can appear a bit further ou ...
Key input by Sequencer is missing in FBX output of parent-child actors
UE - Anim - Sequencer - Nov 15, 2021This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A) ┗Actor(B) ┗Actor(C) This is how the attachments are registered, and the ke ...
[CrashReport] UE4Editor-Renderer.dylib!void FForwardLightingParameters::Set<FRHICommandList, FRHIPixelShader*>()
UE - Graphics Features - Oct 27, 2017This is a 4.18 Mac/Metal crash that has occurred for a few users. It appears related to the Forward Renderer. Callstack from Log[2017.10.27-06.10.08:809][261]LogMaterial: Missing cached shader map ...
Force front x imported asset incorrectly display axis for thumbnail and default editor camera
UE - Editor - Content Pipeline - Import and Export - Apr 12, 2021Thumbnail can be fix by (Quote from UDN) "adjusting OrbitYaw of the ThumbnailInfo for the +X-facing skeletal mesh" Persona Editors can be fix by (Quote from UDN) "setting SkeletalMesh->SetHasCustom ...
Modulate Blend Mode on Deferred Decals does not seem to multiply with background pixels
UE - Rendering Architecture - Materials - May 10, 2022Modulate Blend Mode on Deferred Decals does not blend multiply with background pixels. Transparency for Deferred Decals also does not seem to match with what occurs in 4.27; Repro Rate: 4/4 Tested ...
Changing the case of any node with a String input will not be saved
UE - Gameplay - Blueprint - Apr 20, 2016Changing the case of any node with a String input will not be saved User Description: Changing case of any string input in BP not accepted But the problem is still happened on any string input of ...
Editor will crash on attempt to load a previously-saved Blueprint asset with a serialized default subobject containing a serialized static array of two or more nested subobject instances.
A crash will result if a Blueprint class that's based on a native C++ class containing two or more nested, explicitly-instanced subobjects referenced by a fixed-size object array property are serial ...