Static mesh loses static mesh reference when Alt-dragged in viewport if filepath contains []

Tools - Sep 3, 2015

Static meshes lose their static mesh reference when alt-dragged in viewport. This only occurs if the mesh is located in a filepath containing square brackets ( [] ) within the filepath name. Additio ...

Changing between multiple Streams that are contained within an array does not work

UE - Gameplay - Blueprint - Mar 20, 2015

Changing between multiple Streams that are contained within an array does not work. ...

Using Bake Material Position Offset Into Collision causes landscape to have no collision

UE - LD & Modeling - Terrain - Landscape - Jan 13, 2016

Creating a material with World Position Offset and enabling "Bake Material Position Offset Into Collision" causes the landscape to have no collision. Disabling this feature causes collision to come ...

Characters can fall through a rotating sprite that has been scaled

UE - Gameplay - Paper2D - Oct 23, 2014

A scaled sprite does not appear to consistently maintain its collision for characters near its edges. I'm not certain whether this has anything to do with the character being in a fall state, but th ...

iMac: Whenever _AMDDeviceDetached event occurs, the editor hangs.

UE - Platform - Apple - Nov 4, 2015

The user is reporting that, on their iMac, Whenever _AMDDeviceDetached event occurs in the Activity Monitor, the editor hangs utilizing a reported 101% of the CPU. *The user claims this is 100% re ...

Cannot reference Branch point in CharacterAnimBP event graph

OLD - Anim - Dec 22, 2014

In CharacterAnimBP: After creating a new montage branch point you cannot reference it in the CharacterAnimBP’s Event graph until you close and restart the editor. ...

t.MaxFPS 0 locks FPS to 120 instead of unlocking it in Viewport

Tools - Nov 7, 2017

When unlocking FPS in Viewport it defaults to 120 instead of potential max FPS. If you do this during Launch the 't.MaxFPS 0' or 't.MaxFPS -1' commands unlock the FPS to the max the GPU allows in th ...

Broken assignation of materials when merging meshes

UE - LD & Modeling - Modeling Tools - Mesh Editing - Jul 18, 2019

See the following UDN for a good visual explanation of the bug: https://udn.unrealengine.com/questions/512811/view.html Seems like this was introduced around CL 5639656. ...

Playing as a Pawn that is a Duplicate of a Blueprint Class doesn't create an Attribute Set

UE - Gameplay - Oct 1, 2019

Creating a duplicate of a Blueprint class that has an AttributeSet seems to be interfering with the creation of the AttributeSet. ...

Material Billboard Component doesn't respect screen size when taking into account Camera FOV and AR

UE - Platform - XR - Aug 27, 2020

Material Billboard Component skews when Camera's Aspect Ratio is changed, and varies in size with changes to the Camera's Field Of View. Reported in version 4.25.3 (CL-13942748) and tested in versi ...