FPS Perf Regression on 980

UE - Graphics Features - Mar 17, 2015

At least one user has so far reported a noticeable drop in FPS from 4.6.1 to 4.7.2 in a heavy scene; using a GTX 980. I've reproduced a perf drop in a cooked 4.7 build of elemental demo compared to ...

Crash when returning to viewport from immersive mode with an editor window tabbed beneath

Tools - Mar 2, 2015

When the user enters immersive mode by hitting f11 and then opens the material editor, (which opens tabbed in the editor underneath the immersive display)The engine crashes when hitting attempting t ...

FVoiceSerializeHelper doesn't add references to AudioComponent instances

UE - Networking - Apr 28, 2015

"FVoiceSerializeHelper doesn't add references to AudioComponent instances" ShooterGame crashes when following the repro steps provided by the licensee, listed below and on the UDN post. Crash image ...

Key precision problems on some short animations

Tools - Apr 5, 2016

Please see attached UE4_anim_interp_bug.fbx for a second example. This works as expected in 4.7 and 4.8 I've got a couple different users reporting this now. I suspected animation compression to ...

Using a Macro to access a variable from another Actor causes a crash in Standalone

UE - Gameplay - Blueprint - Jun 8, 2015

Using a Macro to access a variable from another Actor causes a crash in Standalone. This does not seem to affect any other preview in editor, nor packaged games. Reproduced in 4.7.6, 4.8 Preview 4, ...

Using GENERATED_BODY() instead of GENERATED_UINTERFACE_BODY() in an Interface code class results in a UHT crash when trying to build the project.

UE - Foundation - Core - Mar 3, 2015

Replacing GENERATED_UINTERFACE_BODY() with GENERATED_BODY() in 4.7.0 or above results in an Unreal Header Tool crash and build failure in Visual Studio. This was working in 4.6.1, but when tested i ...

Editor Crashes when copying/pasting a custom event function that was within a separate function to an event graph if the custom event was created in another blueprint

UE - Gameplay - Blueprint - Jan 16, 2015

Editor crashes when a custom event node is called as a function within a different blueprint in a separate function, then copied and pasted into the event graph of the second blueprint, the executio ...

Content in the BP Templates folders is located in a subfolder with the name of the template along with empty folders

Docs - Samples - Jan 16, 2015

Content in the Blueprint Templates folders for 4.7 templates (by default: C:\Program Files\Unreal Engine\4.7\Templates) is located in a subfolder with the name of the template. The rest of the folde ...

This user's Function Library will not save

UE - Gameplay - Blueprint - Mar 6, 2015

This user's Function Library will not save. Hitting save returns the following error: Can't save D:/4.7_Projects/EngineTransientBug 4.7/Content/Math.uasset: Graph is linked to private object(s) in ...

Assertion failed: !EditReregisterContexts.Find(this)

UE - Gameplay - Jun 22, 2015

Editor crashes if a blueprint has "Can Ever Affect Navigation" changed multiple times and is compiled. Crash link: [Link Removed] Frequency: 4/4 ...