Unreal Engine Issues

Niagara particles are culled when opaque material blend mode added

Niagara particles are culled from far distances when materials with the Opaque Blend mode are applied to them. Tested in 4.21.2(CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6311794) ...

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

Gear VR media texture split when looking opposite direction

When using a media texture asset the video will run fine when playing in the the headset, but if you look the opposite direction the image fills the screen and splits in half. This is reproducible ...

Adding Instances to a Hierarchical Instanced Static Mesh causes crash

Adding Instances to the Hierarchical Instanced Static Mesh Component on BeginPlay causes the Editor to crash. Tested in 4.19.2 (CL - 4033788), 4.20.1 (CL - 4229980), 4.21(CL - 4235929) ...

Python commandlet crashes when spawning actors in a level

Using the python commandlet to spawn actors within a Map and then saving it causes a crash in the commandline. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286),  4.23 (CL - 6338849) ...

Sequencer - When a subsection has negative play rate, any nested sub-subsections fail to evaluate

Consider a sequence hierarchy with more than two layers. If the top-level sequence uses a negative timescale on a sub-sequence, the contents inside it animate as expected, but any nested sub-sequenc ...

Blueprint NAND node should not be associative.

NAND is not an associative operation, so it should not use the markup that makes N+1 input nodes work by calling the underlying function N times. This was brought to light here: https://udn.unreale ...

Cursor reappears in the wrong location after capture

Cursor reappears at wrong location after capture when "Use Mouse for Touch" and "Hide Cursor During Capture" Broken in 4.20.1 (CL - 4239966), and 4.21 (CL - 42455242) Working in 4.19.2 (CL - 40337 ...

Large UMG Blueprint widget trees can lead to very long compile times when packaging with Blueprint nativization enabled.

Licensee reports very long C++ compile times during packaging after nativizing a UMG Blueprint asset containing a very large and heavily-nested widget animation hierarchy. The support thread outlin ...

Marking a Blueprint as Deprecated Causes Existing Instances to be Removed on Level Load

Enabling the 'Deprecated' option in a blueprint's Class Settings causes all existing instances of it to be deleting upon loading any levels that contain the blueprint. Found in 4.13.1. Reproduced i ...