Unreal Engine Issues
Unreal Engine Issues
Instanced Actors: Editor preview don't show correct relative mesh transforms
UE - Engine Scaling - Mass - May 30, 2026Context Actors can be converted into Instanced Actors via the IA plugin. During runtime and in the editor, an instanced actor’s visual is generated from the collection of StaticMeshComponents on th ...
Setting Simulate Physics breaks "Get Closest Point on Collision" node
UE - Simulation - Physics - Dec 5, 2016'Get Closest Point on Collision" node is used to determine the distance between a primitive component (target) and another specified location (Point) as well as provide the point on the target. Thi ...
Unexpected behavior from moving multiple widget components with render transform
UE - Editor - UI Systems - May 10, 2017Unexpected behavior occurs from moving multiple widget components with render transform applied to them. The individual components seem to change relative position or rotation when being clicked and ...
Crash upon using EComparisonMethod as a variable in a struct
UE - Gameplay - Blueprint - Jul 17, 2017Having a variable of the type EComparisonMethod inside of a struct causes the editor to crash. This could be due to the variable being as part of the Development folders in code. Attempting to repro ...
Split Struct pins cause errors when a project is converted to 4.17
UE - Gameplay - Aug 11, 2017Split Struct pins cause errors when a project is converted to 4.17. You are still unable to split struct pins even if a new variable is created for the struct. Only adding a new variable to the st ...
Crash upon adding an Interface to a Blueprint that has a function name that matches the name of a variable in the Blueprint.
UE - Gameplay - Blueprint Compiler - Oct 13, 2017When you add an Interface to a Blueprint that contains a variable with the same name as one of the Interface's functions, the editor will crash upon compiling the blueprint. In 4.16, this only cause ...
Unable to use Steam Sessions with a source built editor from Github
UE - Networking - Jul 25, 2018Steam sessions are unable to be found in packaged games that use a source built editor from Github. According to users, this is related to the BuildId not being set properly so the packaged games ar ...
Switchboard Unable to Launch Multi-User Slate Server in Launcher Builds
zComponent - Archive - Jan 14, 2023Switchboard is unable to launch the Multi-User Slate Server in launcher builds. This is because the default install location has "Program Files and "Epic Games" in the path (aka folders with spaces ...
Disabling Grid ShowFlag also hides billboard sprites and volume outlines
UE - Rendering - Features - Nov 8, 2023The following odd behavior did not happen until UE 5.2, but happens in the latest UE 5.3. When the "Grid" show flag is disabled in the Level Editor Viewport, all billboard sprites and volume outlin ...
Animation attributes - user defined structs containing types defined in plugins cannot be registered
UE - Runtime - Animation - Dec 18, 2023This issue is caused by us forcing user defined structs to be loaded as part of AttributeTypes::Initialize. That is called after at the ObjectSystemReady run phase during engine initialization howe ...