Unreal Engine Issues
Unreal Engine Issues
GPU Particles Don't Spawn at Correct Location When Used as Collision Event Receiver
UE - Niagara - Oct 8, 2018GPU 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 ...
UCanvasPanelSlot::PostEditChangeChainProperty does not call Super function
UE - Editor - UI Systems - Nov 13, 2018UCanvasPanelSlot::PostEditChangeChainProperty not only does not call its Super function unless the anchor node has been set, but it calls Super:: PostEditChangeProperty instead PostEditChainProperty ...
DataSmith importer is setting incorrect scale on Actors
OLD - Enterprise - Nov 16, 2018When importing, DataSmith is assigning a scale on the actors, the option to set the import scale is no longer available in 4.21. ie: a 36" item comes in at 96" This was reported and tested in 4.21 ...
Static Lights with IES Profiles Will Bake an Incorrect Lightmap
UE - Graphics Features - Jan 3, 2019When using an IES profile with a static light, the lightmap that gets baked will lose all detail of the IES profile. Example project attached. This doesn't occur in 4.19 CL# 4033788 Found in 4.20 ...
Objects with centered pivots become Actors instead of StaticMeshActors when imported via Datasmith
UE - Editor - Content Pipeline - Datasmith - Exporters - Jan 18, 2019When selecting "affect pivot only" and choosing "center pivot" on 56 objects in 3DS Max 2019, 4 of them imported into Datasmith as Actors and not StaticMeshActors. This makes it seemingly impossible ...
Breakpoints on nodes in deleted functions are not cleared
UE - Gameplay - Blueprint - Nov 16, 2018Might be a simpler repro than this, but take a look at revision 1 of PreRolledBoxes in FortniteMain to see an asset affected by this. It was duplicated from StoreRoot which had breakpoints in some o ...
Overridden mesh values are lost when upgrading from 5.5.0/5.5.1 to 5.5.2 on blueprint skeletal mesh components
UE - Anim - Runtime - Jan 30, 2025This issue is caused by the backout in 38341618. The original code that went into 5.0 affects serialization by changing the UCS modified properties. When upgrading, the override is lost because th ...
Editor movement control regression
Tools - Jul 8, 2015Using Ctrl+Drag in 4.8 will not affect the location of selected actor if the viewport camera is facing away from selected actor. In 4.7.6 the actor would travel along the X axis even if the camera ...
Drastic increase in FBX import times from 4.9 to 4.10
Tools - Dec 9, 2015The attached asset (including animation) takes 9 minutes to import in 4.10, where it takes 42 seconds in 4.8 and 4.9. You don't really notice this until you start to get up to larger assets or long ...
Physics are inconsistent between PIE and Standalone
UE - Simulation - Physics - Apr 16, 2015A user has found that they are seeing differences in how objects are affected by physics in Stand alone as apposed to PIE. While testing the amount of force applied to an object in the different pla ...