Unreal Engine Issues
Unreal Engine Issues
Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level
UE - Graphics Features - May 14, 2025Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...
Changing Blueprint Interface's Const Status Doesn't Update Blueprints its Already Implemented In
UE - Gameplay - Blueprint - Nov 8, 2016Implementing an interface that contains const functions and later attempting to change these functions to be non-const does not update the status of the functions inside of the actor they are implem ...
Transition ratio getter function not correct for interrupted transitions.
OLD - Anim - Apr 7, 2016The transition ratio getter simply uses ElapsedTime/Crossfade for the alpha on the transition. Normally this is sufficient, although if you blend between two states A and B such that you interrupt ...
Nativize Blueprints removes blueprint functionality in packaged project
UE - Gameplay - Blueprint Runtime - Jun 15, 2016If a project is packaged with Nativize Blueprints enabled, blueprint event graph information does not run. ...
KiteDemo: Bookmark spawn function broken if in Run mode
Docs - Samples - May 4, 2017While testing in KiteDemo - //UE4/Release-4.16 CL 3420042 in Binary – I found that pressing the bookmark attraction Scene keys (1 - 0) does not work as intended if user is in Run mode. ...
Editor crash when a Breakpoint is added to a Widget's Tick function
UE - Editor - UI Systems - Aug 18, 2017Editor crashes when a widget's tick contains a breakpoint at a print string node. Based on 4.16 warning message, this appears to be caused by the text attempting to draw when no draw buffer is avai ...
GameplayTag category filters do not function on BP SET nodes.
UE - Gameplay - Dec 4, 2018BP SET nodes for FGameplayTags do not respect category filters, instead the dropdown shows an unfiltered list of all gameplay tags. Given the MyValue property decorated as follows: UPROPERTY(Edit ...
Light shaft smear color due to TAA bleeding
UE - Graphics Features - Feb 10, 2020See https://udn.unrealengine.com/questions/553031/volumetric-fog-bug.html?childToView=554676#answer-554676 ...
Add BP function that returns the list of DataLayerInstances in the DataLayerManager
UE - World Creation - Worldbuilding Tools - World Partition - Oct 3, 2023A licensee doesn't have access to all DataLayerInstances of the DL Manager via Blueprint. [Link Removed] ...
Nanite meshes are lit differently in Actor Colorization view modes than non-Nanite meshes
UE - Graphics Features - Nanite - Aug 28, 2024When the Lit > Actor Coloration > Affects Navmesh or other Actor Coloration mode is used, Nanite meshes apply lighting differently than non-Nanite meshes which can make it difficult to use the Actor ...