Assertion failed: UnscaledViewRect.Width() > 0

Tools - May 23, 2018

Crash when using new FCanvasDrawer Licencee notes that crash does not occur if "new FCanvasDrawer" is commented out. ...

Linux Vulkan editor crashes OOM on older graphics cards

UE - Graphics Features - Oct 19, 2018

Vulkan editor is very crashy on older cards due to memory pressure. I have to switch to OpenGL to work on the unrelated bugs. I'm attaching the details of the particular failure I had (see VulkanMe ...

Replay System throws an Ensure during demoplay when calling it in a different Level

UE - Networking - Jul 10, 2019

Replay System throws an Ensure during demoplay when calling it in a different Level. The error is thrown at Source\Runtime\Engine\Private\RepLayout.cpp]. It does not prevent the Replay from being pl ...

ARM64 projects crash on device with Signal 11 with GooglePlay plugin enabled

UE - Platform - Mobile - Sep 20, 2016

When launching ASTC ARM64 packaged project onto S7, it'll crash with Signal 11. It seems very similar to [Link Removed]. ...

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved

UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016

Animations imported with Skeletal Mesh are not marked as dirty and don't get saved. They disappear when the editor is restarted. This does not occur in 4.11 or 4.13. ...

ScrollBox: Add Inertial Scrolling (Touch)

UE - Editor - UI Systems - Oct 16, 2015

Verify that inertial scrolling works in the ScrollBox and the ListView on touch devices. We have reports that it isn't working in 4.9, it may have been fixed since then, or not be as smooth as it c ...

StartCameraFade not fading camera

UE - Platform - Mobile - Aug 3, 2016

This started happening recently in 4.13 integrations. StartCameraFade node no longer has any effect. Fading no longer works in new VR Template. ...

UnrealMatch3 backgrounds not scaling correctly

Docs - Samples - Aug 4, 2016

The backgrounds for the interactive buttons have seemingly scaled down in the 4.13 engine version. The button icon themselves seem to have been unaffected. Screenshot comparisons included ...

MassInKg override resets to 0

UE - Simulation - Physics - Aug 23, 2016

In the details for a Static Mesh Actor, MassInKg resets to 0 when the user tries to set it to something else. I couldn't reproduce this issue in 4.13. ...

WmfMedia: Track switching does not work

Media Framework - Aug 31, 2016

Track switching is currently not supported, because media with multiple tracks of the same type fail to load. Once that is fixed, implement run-time track switching. ...