Unreal Engine Issues
Unreal Engine Issues
StreamableManager does not apply CoreRedirects to loaded paths
UE - Framework - Jun 12, 2025When loading soft object paths directly, it applies any important CoreRedirects by calling the function FixupCoreRedirects if the initial load attempt fails. In the repro steps, this will apply this ...
On the Details Panel of Niagara Function Inputs, the Type selector does not show "Static" types.
UE - Niagara - Apr 7, 2025Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, an input pin with type "static bool" appears. In one ...
Properties not serialized when moving actor/component depending on unrelated specifiers
UE - Framework - Blueprint - Sep 25, 2023When an actor is moved on the level editor viewport, it is reconstructed along with its components, which at first makes their properties reset to their default state. Thankfully, this does not happ ...
Generated Installed build Windows only quicklaunch fails because Platforms\Hololens\Binaries directory non-existant
UE - Foundation - Build - Rocket (Installed Engine) - Nov 11, 2022Repro Rate 3/3Note: Step 3 in the steps to reproduce can take 2+ hours. When trying to do a quicklaunch for Windows platform in step 11 of https://testrail.it.epicgames.com/index.php?/tests/view/1 ...
Parent Socket property is not set from k2_attach_to
UE - Framework - Components - Feb 26, 2026To speed up our process of creating control rig assets we are working on a Python script to automate this process. We have an issue when we try to attach a static mesh component to a socket of a ske ...
Child-Level Blueprint Do Not Call Parents Begin Play by default
UE - Gameplay - Nov 3, 2017When creating a level script actor class and adding logic in the new level script actor class the logic is not automatically executed in child levels. In order to get it to execute someone has to go ...
Importing through Python fails
UE - Editor - Content Pipeline - Import and Export - Feb 20, 2019Version 4.21:The script result in popping the Alembic Import windows instead of a silent importThe provided options are ignored by the importer. Version 4.22: Results in the provided callstack wi ...
EOS Voice plugin causes a crash after adding "DefaultPlatformService=EOS" to the DefaultEngine.ini then restarting the editor
UE - Online - Jan 10, 2022This is not a regression. Doesn't affect UE5. The editor crashes on start up after enabling EOS Voice Chat, and updating the .ini to include DefaultPlatformService=EOS. Removing DefaultPlatformServ ...
Regression: Asset Action Utility "Supported Classes" setting is not working correctly when "IsActionForBlueprints" is true
UE - Editor - Aug 16, 2024When creating an Editor Utility Blueprint derived from "Asset Action Utility", UE allows the user to override function "IsActionForBlueprints". When it returns true, the "Supported Classes" setting ...
Significant editor slowdowns when moving blueprinted actors while having a different complex blueprint open
UE - Framework - Blueprint Editor - Jun 7, 2021A Blueprinted actor's construction script time can be affected by the complexity of an opened level Blueprint. ...