Remove Ant from Android supported build systems

Platform - Mobile - Oct 7, 2019

We now only support Gradle for Android; Ant is fully depreciated. ...

Crash when placing a native UserWidget in a panel within another UserWidget

Tools - UMG - Oct 7, 2019

The engine crashes when trying to initialize a native UserWidget within another widget. This happens because UUserWidget::GetSlotNames gets called before the widget tree is initialized, and we don't ...

Editor Freezes when trying to drag a subfolder with a numerical name higher in the hierarchy than its root folder

Tools - Oct 7, 2019

When trying to move a subfolder out of its root folder it will cause the editor to freeze if the subfolder has a numerical name. ...

SteamVR - Packaged project does not scale to monitor bounds

XR - Oct 4, 2019

Packaged projects will not match monitor resolution when SteamVR is being used. STEAMVR 1.7.15 used ...

Encryption handshake will fail if a seamless travel occurs during key lookup

Networking - Oct 4, 2019

The encryption token challenge/response portion of the control channel handshake can fail due to a seamless travel occurring between the client's NMT_Hello being received by the server and the serve ...

Crash when resizing window using Quad Stereo Buffer

Tools - nDisplay - Oct 2, 2019

We noticed crashes in our application when we attempted to resize a window or switch to full-screen mode. Hence, resizing windows and switching to full screen will result in a crash on Unreal Engine ...

Attachment rules in Level Sequencer are broken

Tools - Sequencer - Oct 2, 2019

The Attach track attachment rules seems to have no effect when selecting "Snap to Target" and playing the sequence. This was reported and tested in 4.23 (CL-8386587). This was reproduced in 4.22.3 ...

Regression in tonemaper sharpen

Rendering - Features Teams - Oct 2, 2019

Sequencer crashes when scrubbing characters with sub-anim instances and montage slots

Anim - Oct 2, 2019

I saw a following assertion. Assertion failed: (AdditivePoses.Num() > 0) || (NonAdditivePoses.Num() > 0) [Link Removed] [Line: 1381] This is my quick fix// code placeholder void FAnimInstance ...