Missing assignment/recursion in UHLODProxy::FindFirstActor can potentially lead to an infinite loop

Tools - HLOD - Aug 13, 2018

User reports on the forums of being stuck in an infinite loop and noticed a dead branch in the titled function:The body of if (SubLODActor) doesn't actually do anything, guaranteeing an infinite loo ...

Infinite Loop When Generating HLOD Clusters

Tools - HLOD - Aug 8, 2018

The HLOD system gets stuck in a infinite loop when building.  Comment from the user: ++I've tracked it down to this code: const AActor* UHLODProxy::FindFirstActor(const ALODActor* LODActor) { a ...

Crash upon attempting to load into session via Join Session in Blueprints on iOS

Networking - Aug 8, 2018

Joining a session on iOS using the Join Session node in Blueprints causes a crash on iOS. This is similar to UE-62319 but was requested to be entered separately. This has not been reproduced in Mai ...

Crash when enabling Edit Mode

Enterprise - Aug 3, 2018

When a Sublevel has "Initially Loaded" set to true and "Initially Visible" set to false, the Editor will crash after exiting PIE

Gameplay - Jul 31, 2018

If you have a sub level with "Initially Loaded" set to true and "Initially Visible" set to false it will crash after exiting PIE. This issue was reported and tested in 4.20.1 (CL-4233996). It has ...

ARCore plugin missing 'tools' components

Virtual Reality - Jul 28, 2018

https://forums.unrealengine.com/development-discussion/vr-ar-development/1494917-ue-4-20p4-arcore-image-database-cannot-build/page2 Bo Pang from Google writes: "I think there are two issues here: 1 ...

Animations are stuttering in Game Preview Server window

Networking - Jul 27, 2018

When 'Run Dedicated Server' is unchecked and you run PIE with 2 or more clients, all client's animations are stuttering on Game Preview Server window. This does not happen when Run Dedicated Server ...

BuildCookRun fails to package if the -build parameter is used and debug symbols have not been installed in the binary Engine

DevTools - Jul 27, 2018

Attempting to package a code project using BuildCookRun does not complete the package process successfully if the -build parameter is included. With the -build parameter included, the process fails ...

Packaged game/Editor with Stereo Layers crashes when exiting game through steam VR overlay

Virtual Reality - Jan 29, 2018

It also happens in VR preview in the editor. ...