Camera Generates error after saving with Control + S

Tools - Jan 15, 2016

Camera Generates error after saving with Control + S when user left or right clicks afterwards. Regression: Could not reproduce in UE 4.10 ...

Find Sessions Consistently Returning Results Length of 0

UE - Networking - Feb 24, 2017

It appears that as of 4.15, there is an issue with creating/joining sessions. The attached test project worked fine previously in 4.14, but now is unable to join sessions. The user has stated: Th ...

Crash when using 'DumpLightmapSizeOnDisk' Console Command

UE - Graphics Features - Mar 21, 2017

A crash occurs when using the 'DumpLightMapSizeOnDisk' in the Console Command. ...

World Position Offset causing Cracks in Meshes on certain iOS Devices

UE - Platform - Mobile - May 24, 2017

When using World Position Offset and pushing verts of a mesh, cracks appear on the surface using WPO when deployed to an certain iOS devices. I used the Mobile Previewer to compare results to how t ...

Linux: async loading code crashes when memory pooling is enabled

UE - Platform - Linux - May 9, 2017

The reasons is a bad interaction between FIND_MEMORY_STOMPS code in AsyncLoading.cpp and memory pooling. Async loading will set PrecacheBuffer to read/only and will never reset it back, expecting ...

Crash while unhiding streaming level in multiplayer

UE - Networking - Sep 27, 2017

When unhiding a streaming level several times on the client there can be a crash. ...

When the Transform of InstancedStaticMesh is updated, the Random Seed value of PerInstanceRandom is updated.

UE - Graphics Features - Oct 18, 2017

When updating Transform of InstancedStaticMesh by UpdateInstanceTransform, PerInstanceRandom used in Material is updated. With 4.16 does not update the RandomSeed value. ...

Crash when calling a RPC function with a TSet or TMap parameter on a client

UE - Networking - May 11, 2018

Calling a RPC function with a TSet or TMap parameter on a client causes the editor to crash. Regression?: No This also occurs in 4.18 ...

WebBrowser SetVisibility not working on Android & iOS

UE - Platform - Mobile - May 29, 2018

SetVisibility not working with Web Browser Widget on mobile devices ...

Foliage is visually missing in HTML5

UE - Platform - Mobile - Jun 26, 2018

Foliage is visually missing in HTML5. This is a new issue and does not occur in 4.19, I believe that it may be correlated to this issue here.https://jira.it.epicgames.net/browse/UE-59573 ...