Unreal Engine Issues

Widget stops updating during drag and drop operation after dragging

Widget stops updating during drag and drop operation after dragging, if the user is using set text. ...

Vive: VR Template (BP) - Rotating teleport preview will not update with current camera rotation

Character Blueprint Cannot Execute Montage to Play at a Negative Play Rate

While an Animation Montage can be played at a negative play rate in Persona, the user cannot use the Character Blueprint to execute this action. ...

Multiplayer Shootout is broken in 4.12

Multiplayer Shootout is broken in 4.12. Appears to be caused by the AimOffset animations being imported at the incorrect scale. Regression: Yes, does not occur if you create a 4.11 version of the ...

Packaged Build Crashing When Activating Particle System with Instanced Parameters

This crash only seems to be occurring in a packaged game, and it has not been able to be reproduced in a clean project following the steps that the user provided. ...

Particle Cutout feature doesn't work on mobile device(Android)

When you create a particle system using the particle cutout feature the particle will render. However, parts of the particle that were previously removed are now there. ...

Crash when changing the number of instances in a grouped sprite component at runtime

A crash occurs when you remove a Sprite Instance within a Paper Grouped Sprite component of an Actor BP on Event Begin Play. I was able to reproduce this crash in the binary releases of 4.11.2 and ...

Changing Preview Rendering Level hides transform widget

When you change the Preview Rendering Level to Android Preview and then close the project, reopen, and do this again it hides the transform widget. ...

Draw Material To Render Target Inverting Alpha Masks

When using the new Draw Material to Render Target function in conjunction with a Material using a masked opacity channel, the render texture is inverted. See attached images for reference. As a not ...

Get Instances Overlapping Box node does not pick up overlapped instances

Get Instances Overlapping Box node does not recognize instanced meshes overlapping the box. The bounds of the box make no difference, nor does having the box test for instances within the same bluep ...