Unreal Engine Issues

Crash when setting Project to only use Windows and DX11 with texture compression as BC7

When user sets their texture compression to BC7 while the project settings are set for Platform to only be Windows and use only DX11 this will cause any textures with this set to cause a crash when ...

AR Utilities plugin requirement missing from 5.3 documentation

Setting Up a New AR Project page for 5.3 is missing important information about including the AR Utilities plugin. https://docs.unrealengine.com/5.3/en-US/setting-up-a-new-ar-project-in-unreal-en ...

Lumen tile classification flicker

While we suggest using screenpercentage at 25%, it is visible at higher percentages. Video showing the flickering:https://udn.unrealengine.com/s/contentdocument/0694z00000Qw4jPAAR ...

Outside of AnimBP's, Animation Sequences with negative Rate Scales do not animate

Animation Sequences with negative Rate Scales do not play outside of using them in Animation Blueprints...unless they are looping. UPDATE: A negative rate scale value also breaks Anim Montages. ht ...

Code classes that include a CableComponent cannot be built in Visual Studio without making a modification to the CableComponent.h file in source code.

Adding a cable component to a custom code class will result in a build failure in Visual Studio unless the Cable Component's source code is modified to include CABLECOMPONENT_API. ANSWERHUB:https:/ ...

Hot Reload Crash involving variables in USTRUCTs

This issue was created for this UDN post: https://udn.unrealengine.com/questions/306933/hotreload-crashbad-behavior-when-addingremoving-pa.html This repro is based off his last repro, cutting it do ...

Mesh Distance Field Artifacts on Older GPUs

Mesh Distance Field quality varies greatly depending on GPU. Per UDN Licensee: On the GTX 670 machines we can see a very blocky, low-res result that behaves in weird ways when moving around the le ...

Segment to Segment Navigation links not usable/working

A licensee asked about SegmentLinks not working. These were apparently disabled because they were buggy and are waiting to be fixed, but not currently being worked on. Adding this to JIRA since ther ...

Crash on Galaxy S7 devices with Mali GPU (SM-G930F / SM-G935F)

CommitMapChange doesn't fully deal with sub-levels

Per https://udn.unrealengine.com/questions/329206/crashes-when-streaming-levels-in-414.html When inspecting the code for this report, it has become clear that the streaming levels of the incoming m ...