Unreal Engine Issues
Unreal Engine Issues
Unable to change Blueprint Child Variable values in Python
UE - Editor - Workflow Systems - Dec 20, 2018Using the Python function unreal.SystemLibrary.set_bool_property_by_name() to change the default variable values of a child Blueprint do not work as intended. Tested in 4.20.3 (CL - 4369336), 4.21. ...
A SoftPathObject as an input parameter referenced by a Blueprint Node didn't cook out
UE - Gameplay - Blueprint Compiler - Jul 27, 2019The input paramter is a type of UEdGraphPin. The PinType.PinCategory can be softobject or softclass, and the reference path is saved in a paramter named DefaultValue of UEdGraphPin.The DefaultValue ...
Skelmesh Bake Materials doesn't remove old materials from slots
UE - World Creation - Worldbuilding Tools - Merge Actor - Mar 24, 2021When an LOD get materials reduced to one with Bake Materials, it doesn't delete the extra slots on the LOD. So if starting with 10 slots on the skelmesh, then baking, slot 1 gets the newly baked mat ...
An array of structures variable has its values reset when the structure is modified without recompiling the blueprint
UE - Gameplay - Apr 2, 2021An array of a structure that has been modified without the array's blueprint being complied results in the values of the array element being reset. Compiling each blueprint that has the array of str ...
Static mesh components spawned in the UCS along a spline require lighting to be rebuilt after a map reload.
UE - Gameplay - Components - Jun 17, 2021Seems to be somehow related to components being instanced in the Construction Script according to a spline. The transforms are slightly off by more than 1.e-2f. They are reconstructed on load with a ...
Perforce Version Control visually appears to allow deletion of locked files in Content Browser
UE - Editor - Workflow Systems - Nov 23, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...
Dark square appears in hair in direction of spotlight when shadows disabled
UE - Graphics Features - Sep 18, 2024A dark square appears in the direction of a spotlight on hair when the spotlight has no shadow. [Image Removed] In UE 5.4 the dark square is visible when the spotlight has no shadow, and a light s ...
No warnings or errors if a UEnum has Bitflags metadata, but no Flags flag.
UE - Gameplay - Blueprint Compiler - Jan 29, 2025The problem here isn't obvious: the native enum, EAnotherEnum, is missing the Flags flag for the UEnum. As a result, K2Node_GetEnumeratorNameAsString returns the max enum when it gets a combined fla ...
Additives using Frame From This Animation as the Base Pose Type fail to retarget correctly
UE - Anim - Rigging - Retargeting - Feb 13, 2025Additive animations that use a frame from their own sequence as a base pose are initially broken when retargeted. Users have to refresh the properties that select the base pose in order to fix the ...
Crash When Changing to Landscape Paint Tool With a Material Function for the World Position Offset of the Landscape Material
UE - Graphics Features - Feb 25, 2019Crash on switching to landscape/paint tab when using a landscape material that has a material function hooked onto the WorldPositionOffset. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL ...