FName no longer equals FName_None when constructed with a trailing underscore and digits in range of 1-9

UE - CoreTech - Apr 15, 2025

When an FName is created with a trailing underscore and any number of digits in the range of 1-9 the trailing digits are used as the internal number value for the FName lookup. This results in the F ...

Translucent Materials do not work well with Depth of Field

UE - Graphics Features - Apr 10, 2015

Depth of Field do not work well when using a translucent material, even if the material has no opacity set. Image attached as reference. Light brown colored mesh is translucentGray mesh is opaque ...

Set Material for a DM in the Construction script will result in a crash

UE - Simulation - Physics - Destruction - Jun 3, 2015

Setting a material in a BP construction script after setting a DM will result in a crash. This will render the BP inaccessible once the project reloads. Opening the BP will result in an instant cras ...

Creating a blueprint from selected components crashes editor if components contain a blueprint with a component

UE - Gameplay - Blueprint - Nov 4, 2015

Frequency: 2/2 Crash Reporter: [Link Removed] Editor crashes if the option: "Convert Selected Components to Blueprint Class" is selected from main editor viewport>Blueprints context menu. This occu ...

The option to add a component to an Actor Blueprint from inside a child Actor Component BP isn't available

UE - Gameplay - Dec 16, 2015

The option to add a component to an Actor Blueprint from inside a child Actor Component BP isn't available. Using Get Owner inside the Actor Component's Event Graph and then casting to the owning Ac ...

Changing a node to a pure function does not remove breakpoints from node and they must be turned into an impure function again

UE - Gameplay - Blueprint - Aug 19, 2015

Changing a blueprint node to a pure function while a breakpoint is set on the node will maintain the breakpoint. Additionally, the breakpoint cannot be toggled or removed until the node is turned ba ...

Losing focus of blueprint component viewport prevents W,E,R from changing transform widget

UE - Gameplay - Blueprint - Aug 4, 2015

If focus is taken away from the viewport window in blueprints (LMB in the details pane, for instance), pressing W, E, or R to change the transform widget will not work until focus is returned. ...

Blueprint PaperTileMap Component not Rendering while in Mobile Preview or Launched on Device

UE - Gameplay - Paper2D - Jun 12, 2015

A blueprint with a PaperTileMap component will not render when played through the 'Mobile Preview' or as a packaged project. If the Tilemap alone is dragged into the viewport it renders fine when p ...

Using "Create Level Sequence Player" can cause the sequence to stop after 60 seconds

UE - Anim - Sequencer - Jun 23, 2016

When using "Create Level Sequence Player" to control a sequence (in this case to Play), it will stop playing at 60 seconds ...

Avoidance Groups Not Being Properly Set

UE - AI - Jun 29, 2016

Setting the avoidance group using the Set Avoidance Group node does not set the value of the group selected to true inside of the Avoidance Group struct. ...