Unreal Engine Issues
Unreal Engine Issues
Query Params are ignored when using EQS
UE - AI - Jun 26, 2019Trying to set the Bool Match as a Query Param causes the value to not be recognized. It just thinks the value is whatever default value it has instead of reading it from the params set in the Behavi ...
D3D device being lost ( DXGI_ERROR_DEVICE_REMOVED ) on both D3D11 and D3D12
UE - Rendering Architecture - RHI - Aug 10, 2020It is hard to reproduce, but a licensee reported in UDN that it crashed on his computer frequently. He provided two crash dumps with logs which I uploaded here.[Link Removed][Link Removed] OS: W ...
Crash when adding an Event Write node to a Niagara Scratch Pad module
UE - Niagara - May 13, 2021It seems that the crash is related to all of the "Write" events. I tested the Event ChaosDestruction Write, Event Float Write, and Event Bool Write and all 3 caused the crash, but their "Read" count ...
FBX import freezes in DataPrep
UE - Editor - Content Pipeline - Visual Dataprep - Mar 3, 2025FBX file import freezes UE while trying to import into DataPrep by the Interchange importer. The import will start, but then a message will pop up stating "Creating snapshot of world content ... " ...
MayaLT LOD groups fail to import into the editor
UE - Editor - Content Pipeline - Import and Export - Jan 20, 2016Given a simple LOD Group setup in MayaLT 2016 and exported with Default settings from LT as a 2014/15 FBX File, the FBX Fails to import. Given the same setup in Maya 2016 and Export Settings, the F ...
Crash report window does not open on GitHub source builds
UE - Foundation - Core - CrashReportClient - Jun 13, 2016When using a source build of 4.12, the crash report client window does not open even if Crash Report Client is manually built alongside the editor. UPDATE: Only affecting Source builds from Github. ...
A Behavior Tree reference to a Blackboard Key will become invalid when the name of the Key is changed in the Blackboard
UE - AI - Oct 5, 2015A Behavior Tree reference to a Blackboard Key will become invalid when the name of the Key is changed in the Blackboard. Clicking on the Behavior Tree node that references the key will update the ke ...
Overridden functions in Child Blueprints cannot be converted to/from pure functions
UE - Gameplay - Blueprint - Jun 27, 2015Overridden functions in Child Blueprints cannot be converted to/from pure functions. Reproduced in 4.8.1 and Main (//depot/UE4/Promotable-CL-2601051) ...
Instanced sub-object property values get out of sync between parent and child Blueprints
UE - Gameplay - Blueprint - Jun 17, 2016Also, another, possibly related symptom that should be looked into alongside this: Possibly related: 1. Set InlineObject to null on both character. 2. Assign new Inline Object to InlineObject on Ba ...
.ini files for packaged games have their settings wiped clean every time the game is run.
The settings .ini files for games packaged for windows appear to be getting overwritten with blank files whenever the game is run. Even if settings are added to the .ini files manually, the files be ...