Nvidia Graphics Drivers cause editor menus to flicker and disappear after using the editor for an extended period of time

UE - Graphics Features - Apr 16, 2021

This issue seems to be occurring on a variety of Nvidia cards. So far, I haven't seen any indication that it is affecting AMD graphics cards. The majority of the reports have indicating that the pro ...

The Get node for the float value of Custom Axis Mappings only return 0.0 when called from Blueprints other than the Controller

UE - Gameplay - Input - Dec 3, 2014

The Get node for the float value of Custom Axis Mappings only returns 0.0 when called from Blueprints other than the Controller. Input from the player does not affect the value. Note: this works a ...

Using LOD for Per-Poly collision doesn't work

UE - Simulation - Physics - Aug 11, 2016

When choosing LODs for per-poly collision the static mesh stops blocking actors in the level. I tested this on 4.13 preview 1 and it is still an issue. I used the 3dsMax workflow for this process ht ...

Accept Source on conflicted asset creates duplicate, renamed, blueprint asset and makes original unopenable

UE - Gameplay - Blueprint Editor - Aug 6, 2016

Accepting source for a conflicted blueprint asset in the merge tool currently creates a new asset *_3 and makes the original name asset unopenable. Found on: //UE4/Main CL-3079307 //UE4/Release-4. ...

Static code functions cause associated blueprints to not compile after a hot reload

UE - Foundation - Cpp Tools - Hot Reload - Oct 14, 2016

If a function inside a BlueprintFunctionLibrary class is declared as static, instances of the function node inside blueprints cause the blueprint to not save after a hot reload. This does not affec ...

Editor crash when enabling Distance Field AO Visualization in the Forward Renderer

UE - Graphics Features - Jan 9, 2017

When forward rendering is enabled along with Mesh Distance Fields if you go to visualize Distance Field AO in the main viewport the editor will crash. This only affects the Forward Render and works ...

Default values resetting for level instances of custom component pointers

UE - Gameplay - Components - Feb 3, 2017

When a code component contains a pointer to an actor, adding the component to a blueprint and setting the pointer to point to an instance of the same blueprint will cause the pointer to reset to "No ...

Subclass disappears from class variable drop-down on re-open

UE - Gameplay - Blueprint - Mar 13, 2017

Subclass disappears from class variable drop-down upon reopening the project. There is a workaround for the issue but it is strange in nature. Opening the level blueprint and adding the node in scre ...

Construction script not updating HISM array count

UE - Gameplay - Blueprint - Mar 27, 2017

Construction script not updating HISM array count, even when new elements are adding inside of the level. Regression: Issue occurs in 4.15.1 of the binary build Using the same repro steps provid ...

Black artifacts when navigating viewport

UE - Graphics Features - Apr 18, 2017

When navigating the viewport, placed actors can leave a "black shadow" as the camera viewpoint changes. The artifacting remains until "Game view" or wireframe mode is activated. This only occurs i ...