Unreal Engine Issues
Unreal Engine Issues
"Override Game Mode" only works with "Use Separate Process" enabled
UE - Anim - Sequencer - Jul 13, 2016Override Game Mode only works when Using Separate Process ...
Static imported as skeletal removing material IDs with some FBX
Tools - May 27, 2016Static imported as skeletal removing material IDs with some FBX. This user's FBX files are, so far, the only ones that exhibit this behavior ...
Access None with Event Hit to get Physical Material type
UE - Gameplay - Feb 13, 2015When trying to get a hit result from physical material using a event hit node there will be a access none error caused in the log. This is the exact error presented: Error Accessed None 'CallFunc_B ...
Emitter Initial Location breaks when using Orbit module
UE - Graphics Features - May 30, 2017Emitter Initial Location (EIL)module will cause the emitter with the module to follow whatever other emitter is set. If the emitter being followed has an Orbit module, the first emitter does not fo ...
After loading a SubLevel from the PersistentLevel of WorldComposition, the offset of WorldComposition is applied when loading the SubLevel alone
UE - World Creation - Worldbuilding Tools - World Composition - Aug 30, 2018When loading a Sub Level from the Persistent Level of World Composition, the offset of WorldComposition is applied when loading the Sub Level by itself. The offset can be applied repeatedly when rel ...
Anim Graph will hang if the Draw Debug Sphere and Set node are connected and compiled
UE - Runtime - Anim BP - Jun 8, 2023anim blueprint hangs when compiled. Probably a cyclic issue when compiling. A workaround is to add a delay of any time between the set node and the Draw Debug Sphere node. Repros in the following v ...
LandscapeSplineMeshesActor instances not deleted when World Partition is disabled
UE - World Creation - Worldbuilding Tools - World Partition - Oct 30, 2024When landscape splines exist in a WP level, LandscapeSplineMeshesActor instances are created to allow streaming of splines. In a non-WP level, splines are components of the landscape actor. When a W ...
OverrideVertexColor causes a crash on mobile renderer
UE - Platform - Mobile - Graphics - Jan 8, 2026Setting Allow CPU Access on the mesh, or setting bSupportsManualVertexFetch=1 in Engine.ini, avoids the crash. ...
Crash when Live Coding is triggered after engine source edits Blueprints using ChildActorComponent
UE - Framework - Blueprint - Nov 28, 2025After editing engine source files and triggering Live Coding, derived Blueprints that inherit from a Blueprint containing a ChildActorComponent cause UChildActorComponent::Serialize to run on a Live ...
Structure variables in Child Blueprints do not maintain the default values set in their Parent Blueprints
UE - Gameplay - Blueprint - Jan 12, 2015Values changed to an inherited Struct variable in a Child Blueprint will be kept after compile, but any not changed will be set to 0s. ...