Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor-Core.dylib!<Unknown>
OLD - Anim - Dec 31, 2015[Link Removed] ...
~FStaticMesh() can crash with race condition
UE - Graphics Features - Mar 21, 2017UDN user reported frequent crashes in FStaticMesh::~FStaticMesh() on DrawListLinks[i]->Remove(false); Crash went away after adding critical sections to FStaticMesh::LinkDrawList(), FStaticMesh::Unl ...
Mutable references MetaHumans heads directly, but DNA Assets are private
UE - Anim - Mutable - Sep 18, 2025When we switched our project to 5.6.1 This error appeared on build. The compilation of the Mutable assets in the editor is not reporting any issue. ...
Attempting to record a demo in PIE causes a crash
When you try to use the console command "demorec" to record a demo in PIE, a crash occurs. Note: This did not occur in 4.8.3 but another crash happened when trying to run the "demoplay" console com ...
MRQ rendering crashes when there is an empty audio track
UE - Virtual Production - Tools - MRQ - Aug 25, 2025Crash editing Transition Logic after deleting State and Transition in State Machine
UE - Anim - Runtime - Anim Blueprints - Sep 8, 2020Attempting to click on a node in a Transition Logic that has been opened in a new tab will cause a crash when the correlating State node and it's transition have been deleted from the State Machine. ...
Editor crash after reverting a Blueprint asset in source control
UE - Framework - Blueprint Compiler - Feb 26, 2025Added context from dev support ticket:The crash occurs because FDelegateProperty::Serialize accesses a dangling SignatureFunction pointer. Given that its derefencing dangling pointers the specifi ...
Crash when an empty Anim Composite is attached to a Mesh component of a BP actor in a Level Sequence
UE - Anim - Sequencer - Sep 27, 2024There is a crash that will occur when an empty Anim composite asset is being referenced in the Mesh component attached to a BP actor within a level sequence. Crash also occurs in Live 5.4.4 - not a ...
Creating a Blueprint Variable for InputActionKeyMappings, and then removing the default input parameter causes crash.
UE - Gameplay - Input - Nov 9, 2018Upon creation and compilation of a Blueprint Variable of type InputActionKeyMappings, when clicking the "X" to remove the default input key parameter causes the editor to crash. ...
Crash When Two PostProcess Volumes Are Selected Simultaneously
UE - Graphics Features - Feb 3, 2017Once you add two postprocess volumes (one to the persistent level and one to a sublevel) then add a blendable element to each, and then try to select both a crash will occur. ...