Heterogeneous Volume Actor causes ensures to trigger in Debug builds

UE - Niagara - Aug 24, 2025

When a heterogeneous volume actor is used with a volume material in a debug build, the following ensures are triggered: Ensure condition failed: UniformBufferValue || EnumHasAnyFlags(AutomaticallyBo ...

APT copies only one CSV from GauntletTemp even if multiple perf sequences are run

UE - Platform - APT - Oct 8, 2025

Reported by a licensee - separate CSVs from different perf sequences that are in one go are not picked up upon completion. ...

Creating a class derived from Trigger Base or its subclasses fails in editor

UE - Gameplay - Apr 30, 2015

Attempting to create a class with the parent set to Trigger Base, Trigger Box, Trigger Capsule, or Trigger Sphere will fail to create the class ...

Selecting Auto Convex Collision crashes the editor

UE - Platform - Linux - Apr 13, 2015

In the static mesh editor, choosing the Auto Convex Collision from the Collision drop toolbar and selecting apply will immediately crash the engine. ...

Additive anim slot takes over when played with Matinee

OLD - Anim - Aug 12, 2015

When you have an animBP with two anim slots (one of which is additive) and are playing the animations via Matinee through each slot, the additive animation takes over and the base animation doesn't ...

Format Text node accepts breakpoints w/o execution pins

UE - Gameplay - Blueprint - Feb 6, 2015

Even though the Format Text node does not have any execution pins it is possible to put a breakpoint on the node. NOTE: The breakpoint appears as a yellow circle and does not trigger when the code ...

console "stat" commands function properly but report command as not recognized

Tools - Jan 9, 2015

A number of "stat commands" such as "stat memory" or "stat collision" are working when used but display the message "Command not recognized: stat memory" when entered. ...

No scroll bar is created when the Collision Preset section of Project Settings is expanded

Tools - Mar 15, 2015

No scroll bar is created when the Collision Preset section of Project Settings is expanded. Clicking an element in the Preset section does not add the scroll bar. Collapsing the section and re-exp ...

Fracturing a destructible mesh based off of rolling template BallMesh_DM freezes editor

UE - Gameplay - Oct 20, 2014

When creating a destructible mesh based on BallMesh_DM from the Rolling Template, if a user attempts to fracture the mesh it will freeze the editor and must be shut down through task manager ...

Save Package Dialog scrolling is slow.

Tools - Nov 30, 2015

A licencee reports slow scrolling in the Save Content dialog when working with hundreds of items marked as dirty. From profiling it appears that PackageTools::GetObjectsInPackages is the main offen ...