Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_Engine!FMaterial::CacheShaders() [materialshared.cpp:1663]
UE - Graphics Features - Mar 13, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Fatal error: [Link Removed] [Line: ...
Actor in Map in Struct Causes Crash When Changed
UE - Gameplay - Blueprint - Mar 8, 2018User submitted bug. Editor will crash after changing key or value in Map. ...
Surface snapping attached actors cause unexpected behavior
Tools - May 17, 2019Surface snapping causes erratic changes in scale to StaticMeshActors that have children of the same type. The user also has provided a potential solution to this bug (Please see the code below. N ...
In Sequencer, copying a Missing/Invalid Bound Object to a track may crash the Editor with an Unhandled Exception at UExporter::FindExporter()
UE - Anim - Sequencer - Jun 26, 2025In Sequencer, copying a Missing/Invalid Bound Object to a track may crash the Editor with an Unhandled Exception at UExporter::FindExporter(). The licensee has provided a txt file that contains the ...
Crash diffing an AnimBP with a node deleted from a State Machine Transition
UE - Gameplay - Blueprint - Mar 10, 2017Error message: Assertion failed: false [Link Removed] [Line: 1123] Looking for node K2Node_AnimGetter_327 but it cannot be found in provided panels Source Context: 1108 } 1109 111 ...
Crash in FNetGUIDCache::GetObjectFromNetGUID()
UE - Networking - Jun 28, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Package->IsFullyLoaded() [Link Removed] [Line: 2296] Source ...
[CrashReport] UE4Editor_UnrealEd!EditorLevelUtils::SetLevelVisibility() [editorlevelutils.cpp:748]
Tools - Aug 16, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: Level->bIsVisibl ...
[CrashReport] UE4Editor_AssetRegistry!FAssetRegistry::GetSubClasses() [assetregistry.cpp:2803]
UE - Gameplay - Blueprint - Jan 31, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...
Switch on custom enum causes compilation errors after Hot Reload
UE - Foundation - Core - Sep 28, 2015If the project is hot reloaded while a Switch on Enum is inside of a blueprint which is switching on a custom enum, the switch will become corrupted. It changes the 'selection' pin to take a Byte pa ...
Crash reimporting a skeletal mesh with less Material IDs than on first import
NOTE: Does not occur in 4.16, entered this to find a fix for licensee to integrate. Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out o ...