Unreal Engine Issues
Unreal Engine Issues
Live: Crash when opening a blueprint who's component was edited in VS
UE - Gameplay - Blueprint - Oct 31, 2014Added functionality to a blueprint component through code and built the project in VS. After a hot reload, I saved the blueprint and closed the editor. Reopening the editor and the blueprint cause ...
The Child Actor Component cannot be selected in the Blueprint Editor Viewport
UE - Gameplay - Jun 8, 2015The Child Actor Component cannot be selected in the Blueprint Editor Viewport. Selecting the Child Actor Component in the Components tab is the only way to select the component. Reproduced in 4.7.6 ...
Component in Child Blueprint Parented to Inherited Component Disappears
UE - Gameplay - Components - Mar 4, 2016When you have a child blueprint that contains a component that is parented to an inherited component, changing a value on that inherited component in the original parent blueprint and then compiling ...
Preview Asset Becomes Detached from Socket When Renamed
Tools - Dec 28, 20174.17: The preview mesh disappears entirely when the name of the preview asset is changed When a preview asset is applied to a socket, and the socket is renamed, the preview asset becomes detached ...
Control Rig: crashes when compiling after rearranging input pins in an array in Example Rig Unit
OLD - Anim - Aug 20, 2019The crash doesn't occur every time, but it will happen within 3 swap and compiles in my experience. I got multiple different callstacks when I cause the crash using the reproduction steps (they are ...
Nanite Mesh Dither Opacity Mask Not Working in 5.6.0
UE - Graphics Features - Nanite - Jul 30, 2025In Unreal Engine 5.5.4, the Dither Opacity Mask option in a Masked material works correctly on Nanite meshes. However, in version 5.6.0, the dithering effect no longer applies to Nanite meshes. ...
Changes to code during a compile are not registered if compile is canceled/restarted
UE - Foundation - Cpp Tools - UnrealBuildTool - Jul 31, 2015While the editor is compiling a hot reload, if project code is changed and the compile is canceled, code changes are not reflected upon next editor compile. ...
Blueprints copied or moved to another level do not retain variable references to other Actors that are also copied or moved
UE - Gameplay - Blueprint - Apr 17, 2015Blueprints copied or moved to another level do not retain variable references to other Actors that are also copied or moved. Reproduced in 4.7.5 binary and Main (//depot/UE4/Promotable-CL-2507843) ...
Enum Variable doesn't pull the correct Default Value
UE - Gameplay - Blueprint - Aug 10, 2015Enum Variable doesn't pull/print the correct Default Value User Description: (Blueprint) User defined enum in 4.9 getting corrupted I believe there is a severe underlying issue in 4.9 regarding u ...
Application is crashing on the HTC One when UMG is used in the project
UE - Platform - Mobile - Jan 26, 2015If you include UMG in your project and deploy to an HTC One, the project will crash on the device. Tested this on multiple devices (Galaxy S5, HTC One, NVIDIA Sheild tablet) Monitor logs are atta ...