TextRenderComponents do not update bounds right away when changing text

UE - Graphics Features - Sep 18, 2015

When using a print string to print out changing values in a single line of execution. The result that is printed out is not always accurate. ...

Editor Menus don't update on Mac to currently selected Tab.

UE - Platform - Apple - Dec 2, 2016

Under certain conditions, when switching between the project tab and subsequent docked blueprint tabs, the appropriate menu will not refresh for the currently selected tab. Regression: No ...

Geometry collection - source geometry not updating and reset bug

UE - Simulation - Core - Aug 17, 2023

This issue was reported by a customer trying to modify the static meshes of a GeometryCollection. After removing some meshes from the Geometry Source, he used the Reset button to apply the changes t ...

Editor Crashes When Updating Captures on Sphere Reflection Captures

UE - Graphics Features - Feb 20, 2017

Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out of bounds: -1 from an array of size 11 Source Context: 200 CubemapArray.Updat ...

Crash when updating phsyics simulated box extent during runtime

UE - Simulation - Physics - May 12, 2017

If a Box Collision component is set to simulate physics, calling "Set Box Extent" causes the editor to crash. Workaround: Setting Collision Enabled for the box component to "Physics Only" or "Query ...

Crash accessing USplineComponent from Niagara while it is being updated on game thread

UE - Niagara - Aug 13, 2020

I was working with a licensee on something unrelated, and ran into this niagara threading crash. It looks like UNiagaraDataInterfaceSpline::SampleSplinePositionByUnitDistance on one of the niagara h ...

Attached actors have AttachmentReplication marked as dirty every net update

UE - Networking - Feb 11, 2026

In AActor::GatherCurrentMovement, bWasAttachmentModified will be set to true if the actor’s root component has an AttachParent, even if none of the values in the AttachmentReplication struct have ch ...

Instanced properties do not update in actors placed in a level that is not currently open

UE - Framework - Blueprint - May 17, 2023

The user is specifically having a problem with TArray<TObjectPtr<>> however I have also reproduced this error using a single TObjectPtr<>, raw uobject pointers & all three previous methods within a ...