Event dispatcher not working as intended when using Mobile Preview and UMG

UE - Editor - UI Systems - Nov 24, 2014

When setting up UMGs, the Print String will not show in the mobile preview. ...

Resolution appears incorrect when using Windows Mixed reality Simulator

UE - Platform - XR - Feb 4, 2019

Resolution appears incorrect when using Windows Mixed reality Simulator. It appears to only take up around 1/4 the available screen space. ...

Virtual Texturing: RuntimeVirtualTextureOutput Node Can Be Used with a Virtual Texture Domain Material

UE - Graphics Features - Jun 21, 2019

When adding a RuntimeVirtualTextureOutput node to a Virtual Texture domain material, the RVT Output node overwrites any data being sent to the normal material node's output, which interferes with th ...

Vehicle tire forces applied too high

UE - Simulation - Physics - Jul 22, 2022

Vehicle wheel friction values are applied too high relative to the vehicle centre of mass.  They are applied at the wheels original rest position rather than the base of the current wheel location. ...

Actors not marked as Always Relevant do not replicate to Clients that have possessed a vehicle past 15,000 units of the point of possession

UE - Networking - Oct 20, 2015

Actors not marked as Always Relevant do not replicate to Clients that have possessed a vehicle past 15,000 units (the sq root of Net Cull Distance Squared) of the point of possession. Note that repl ...

Ignore Base Actor Rotation set to false continues to ignore base actor rotation

UE - Gameplay - Apr 14, 2015

Setting Ignore Base Actor Rotation to false continues to ignore base actor rotation when standing on an object that is spinning. ...

Get All Actors of Class is failing to report at Event Begin Play in a streamed level

UE - Gameplay - Sep 3, 2015

Get All Actors of Class is failing to report at Event Begin Play in a streamed level. Test project attached. This is a regression: did NOT occur in 4.8.3. Reproduced in 4.9.0 binary and Main (2678 ...

Blueprint Instanced static meshes generated in construction script do not bake lighting properly

UE - Graphics Features - Mar 12, 2015

Blueprint's with an instanced static mesh that has instance components added via construction script will fail to build lighting correctly when the pivot is placed outside the lights radius. This ...

UMG Editor Will Compile Incorrect Node And Crash When Called During Runtime

UE - Editor - UI Systems - Dec 26, 2019

The UMG editor will compile as if the blueprints is valid if you make "Get Text" node from a TextBlock variable, delete it and create a EditableText variable with the same name. When running a scene ...

Editor becomes unresponsive for long periods between edits of a user-defined enum type when it's referenced by one or more user-defined struct types.

UE - Gameplay - Blueprint - May 17, 2021

After adding a member to a user-defined struct type and changing the member type to a user-defined enumeration, repeated edits to that enumeration will eventually cause the editor to become increasi ...