Unreal Engine Issues
Unreal Engine Issues
GPU memory leak during large source control operations
UE - Editor - Workflow Systems - Jul 28, 2022We've seen some reports of GPU memory leaks during source control operations caused by the animation of the throbber widget, potentially leading to a crash if GPU memory runs out. The crash has been ...
Prompt for camera permissions when running Google VR plugin
UE - Platform - XR - Mar 7, 2018Need to update these UDN threads when the issue is fixed. https://udn.unrealengine.com/questions/401360/ios-shipping-build-crash.html https://udn.unrealengine.com/questions/428225/about-ios-ship-b ...
Race condition whilst cooking material layers: Invalid DDC key
UE - Graphics Features - Oct 5, 2018When cooking the DDC key for a material layers parameter set may become invalid which causes issues reading/writing to the global material shader map and can lead to a crash. See original UDN post f ...
Ctrl + z still active in PIE
Tools - Jan 20, 2016Users can select ctrl + z while playing in Editor causing PIE to stop and undo last change, often freezing the editor temporarily, and sometimes causing a crash. Workaround: This does not occur if ...
Streaming of array textures with mips results in nearest mips being black
UE - Graphics Features - Jan 20, 2020The issue is discussed in this UDN:https://udn.unrealengine.com/questions/544210/crash-starting-up-in.html Key quote from UDN thread is:"Also, having made a texture array with 190 entries, it seems ...
Using a user generated timeline in blueprint causes an exception in engine code.
UE - Gameplay - May 13, 2015This crash is caused by an exception that is thrown due to the functions inside of a blueprint based off a user-defined class that is suppose to mimic Timelines. ...
Nested comments are not parsed correctly by UHT when a second UClass is declared
UE - Foundation - Cpp Tools - UnrealHeaderTool - Mar 14, 2016Using nested comments when also declaring a second UClass in the same header file causes the UHT to have issues when parsing, resulting in a crash of UHT. ...
Changing function return type in code does not update blueprint pin links
UE - Gameplay - Blueprint - Oct 31, 2016When the return value of a C++ function is changed without preforming a hot reload, instances of the function node used inside a blueprint function will have their Return Value pin updated to the co ...
Attaching capsule to Root component triggers VS Break on PIE
UE - Foundation - Core - Feb 13, 2015When a capsule is attached to an actor Root Component followed by playing in editor through VS debug mode there is a breakpoint triggered in VS upon pressing PIE. Continuing through the break allow ...
Managed particle systems can fail to be removed from managed ticking when pending registration
UE - Niagara - Mar 31, 2021UParticleSystemComponent::SetComponentTickEnabled can fail to disable ticking due to IsTickedManaged not checking if the particles system is pending registration. The crash was in part because of c ...