Unreal Engine Issues
Unreal Engine Issues
In some situations, a Blueprint can become devoid of an Event Graph. While no graphs are present, multiple variables can be created with the same name.
UE - Framework - Blueprint Editor - Aug 26, 2024In some situations, a Blueprint can become devoid of an Event Graph, or be created without one from the start. For example, function "FKismetEditorUtilities::CreateBlueprint()" in UE 5.4 does not ca ...
Blueprint Launches onto tvOS fail during runstep: Error_DeviceOSNewerThanSDK
UE - Platform - Mobile - Apr 19, 2019When a user launches blueprint project to a tvOS device they will fail to run the project during the run step and if they manually try to launch the app from the dashboard. This issue does not repr ...
Level Sequences in Level Instances
UE - World Creation - Worldbuilding Tools - Level Instances - Mar 20, 2023Workaround is to specify Binding Overrides on the LevelSequenceActor through its Details panel as such (while editing the LI). ...
Crash upon attempting to compile a blueprint while Git source control is active
If a user connects to source control through the Git plugin and creates a repository, when they try to compile a blueprint, they can sometimes crash ...
Niagara - The "Apply" button on the toolbar does not get enabled when changing the checked state of an entry in "Propagated Static Switch Values" for a function call node.
UE - Niagara - Apr 7, 2025Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. Now consider another Niagara Function Script or Module Script ...
Crash when Previewing specific LODs within Static Mesh Editor at certain Screen Resolutions
Tools - Oct 27, 2016A crash occurs when attempting to preview specific LODs when the monitor resolution forces the menu to be expanded when selecting an LOD. This Jira was created from CrashReports submitted by the pu ...
[Mobile/Forward Rendering] PlanarReflection does not work when the reflection plane faces certain directions
UE - Platform - Mobile - Sep 24, 2025Note: This repros on 4.27 and all 5.x versions. When using the mobile renderer and/or forward shading, Planar Reflection will simply not work if the reflection plane normal has components that add ...
Auto-Save failing, pulling old saves and blocks users from continuing
UE - Editor - May 15, 2023Reporting an issue where are users are getting prompted to auto-save, but then it appears to fail and asks them to manually save. They're being prompted with outdated save files, but get stuck in a ...
It is possible to rename a Function Output the same as a Local Variable, which causes a compile error
UE - Gameplay - Blueprint - Apr 15, 2015It is possible to rename a Function Output the same as a Local Variable, which causes a compile error: Error Internal Compiler Error: Tried to create a property TestVar in scope NewFunction_0, but ...
If using SetAlignmentInViewport in Construct, the value with it is ignored
UE - AI Workflows - UI Systems - UMG - Jan 27, 2023If SetAlignmentInViewport is called in the UMG Construct, it is ignored internally. This is due to a change that came in 5.1, so it worked fine in 5.0. First, when the Set Alignment in Viewport nod ...