Unreal Engine Issues
Unreal Engine Issues
StructUtils plugin's `FInstancedStruct` in a CPP-defined struct in a `TArray` on an actor component defined in CPP and implemented in BP. Populating the instanced struct in an actor BP's class defaults breaks serialization of the class defaults.
UE - AI - May 30, 2025Context Instanced structs are great for holding simple data with the main advantage they have is a low memory overhead unlike instanced objects. Problem The problem is in StructUtils plugin's `FIns ...
'Moved' event pin doesn't trigger on the 'Input Touch' node correctly
UE - Editor - UI Systems - Apr 8, 2016'Moved' event pin doesn't trigger on the 'Input Touch' node correctly Regression: This does not happen in 4.10.2. The 'Moved' pin triggers at all times when the mouse-button is held and the mouse i ...
Slider Values are not working inside of a blueprint
UE - Gameplay - Blueprint - May 7, 2015Slider Values are not working inside of a blueprint in 4.8 Preview 1. User Description: Problem with the numeric float/int boxes in the editor in Blueprints, if for example open the TPS Template a ...
MetalRHI Asserts When Using "Profile GPU" With RHI-Thread/Parallel-Execution
UE - Graphics Features - Sep 14, 2016When the RHI thread is enabled (with or without parallel-execution) for Metal it isn't currently possible to run "profilegpu" because the GPU timestamp emulation code isn't multi-thread safe and pro ...
Assert caused by using FText::FromStringTable to initialize a FText property in the constructor of a UStruct based off FTableRowBase
UE - Foundation - Core - Jan 4, 2019When using FText::FromStringTable to initialize an FText variable in the constructor of an FStruct that inherits from FTableRowBase, an assert is caused due to recursion. The assert is as follows:As ...
Auto Convex collision generation doesn't work in some instances the accuracy setting
UE - Gameplay - Jun 18, 2015The new auto-convex collision generated (V-HACD) will not work properly with some meshes to generate accurate collision. Using a rounded single piece mesh the accuracy setting will not work at all ...
Ensure triggered inside Range Struct Customization when Property Node is no longer valid (e.g. when editing FFloatRange while FRuntimeFloatCurve editor is visible) [Ref. UE-341339]
UE - Editor - Workflow Systems - Nov 12, 2025[Link Removed] was fixed by CL 46990575, successfully avoiding an ensure condition inside FIntervalStructCustomization::SetValue() when its Property Node is no longer valid. However, the same proble ...
Attached Project Crashes While Opening After Conversion From 4.10 to 4.11
UE - Foundation - Core - May 3, 2016The attached project is now crashing after being upgraded from 4.10.4 to 4.11.2. This crash also occurs when attempting to open a copy of the project in 4.12 Preview 1. After further investigation ...
Syncing to an asset through in-editor interface will not update existing assets while in the editor
Tools - Sep 4, 2015If a user syncs to an asset through the editor (right-clicking it in the Content Browser and selecting Sync), the asset will not update until the editor is closed and reopened. Note: This issue is ...
Mesh painting on staticmesh doesn't always apply Colors to All LODs
UE - Editor - Content Pipeline - Asset Build - Apr 18, 2022See the video [Link Removed] ...