Unreal Engine Issues
Unreal Engine Issues
Custom Primitive Data color widget not applying correctly to static mesh components in Blueprint editor.
UE - Rendering Architecture - Materials - Jul 23, 2025Context Custom Primitive Data is used to store custom data in an index array that is accessible through Blueprint and code. This allows for variations across instances of the same mesh without needi ...
Complex Collision as Simple causes odd Overlap behavior
UE - Simulation - Physics - Jan 25, 2016When triggering overlap events with a Static Mesh using Complex Collision as Simple, the overlap Begin and End events will be triggered rapidly in sequence. Changing to Default collision will fix t ...
Parent Begin Play node does not appear to run the parent code class BeginPlay() function before the rest of the Blueprint's Begin Play functionality
UE - Gameplay - Blueprint - Feb 19, 2015If a Blueprint event graph contains a Begin Play node that connects to a call to the parent function, the functionality present in the Blueprint Begin Play segment is run before the parent Begin Pla ...
With Use Fixed Frame Rate turned on, time-based elements of the Editor appear to operate at incorrect rates.
Tools - Oct 29, 2015Turning on the Use Fixed Frame Rate option for a project causes time-based elements of the Editor to operate at incorrect rates. ...
[CrashReport] UE4Editor_UnrealEd!GetLandscapeOpacityData() [lightmasslandscaperender.cpp:238]
UE - Graphics Features - Dec 15, 2017No user comments ...
Fast Path pin update can break when anim BP compilation generates warnings
UE - Anim - Runtime - May 13, 2021It seems that a Anim BP that generates a warning will break the updating of pins that are connected via fastpath in other parts of the graph. This was reported on the following UDN: [Link Removed] ...
Changing root component in C++ does not apply correctly to map placed actor instances
UE - Gameplay - Jan 4, 2023Edit: Please investigate for not only root component changes, but native component hierarchy changes in general and whether those hierarchy changes apply to actor instances saved as part of maps. O ...
Some post-processing passes sample outside of the viewport when using scene capture components
UE - Graphics Features - Nov 29, 2023It looks like the SSAO shader does not clamp its sample space to the half view size for the two inputs "Ambient Occlusion" and "AmbientOcclusionSetup", leading to invalid data entering the edge of f ...
Scene Capture 2D will default back to View 0
UE - Graphics Features - Oct 8, 2015The scene capture will revert back to the Character BP that is placed in the level when player 2 is not moving. When they are moving the scene captuer will show correctly. You can get around this ...
[CrashReport] UE4Editor_Engine!FLevelCollection::RemoveLevel() [world.cpp:249]
UE - Gameplay - Dec 1, 2017This is a common crash that has occurred since at least 4.14 User DescriptionsWas playing in editor and ran around my world composition level a little bit and then hit escape to quit.Using the node ...