Unreal Engine Issues
Unreal Engine Issues
PerInstanceRandom does not work on Instanced Static Meshes spawned at runtime
UE - Graphics Features - Aug 11, 2017PerInstanceRandom does not provide a random value when the material is being used on an Instanced Static Mesh that is spawned at runtime, the value is always the same. Regression?: Yes This did not ...
OnClicked event of UMG button fires once in twice if virtual joystick is receiving input.
UE - Editor - UI Systems - Oct 14, 2015OnClicked event of UMG button fires once in twice if virtual joystick is receiving input. Both Andorid and iOS devices are affected. This issue is found with 4.9 update. under 4.8 are fine. ...
Instances Created From Merge Actor Have Corrupt Lightmaps
UE - Graphics Features - Jun 6, 2019Instances Created From Merge Actor Have Corrupt Lightmaps. Working as intended in 4.20 CL# 4369336 and 4.21 CL# 4753647 Found in 4.22 CL# 6574378 and 4.23 CL# 6842436 This is a regression. ...
Scaling a SceneCapture2D from Default Scale will cause Decals to Disappear in the Render Target
UE - Graphics Features - Dec 6, 2016When scaling a SceneCapture2D actor/component any decals there were being rendered within the Render Target disappear. I also noticed that when the SceneCapture2d is set to orthographic, the scale ...
ContentExamples: StaticMeshes Example 1.7 "StaticMeshEditor" is all one word
Docs - Samples - Jan 19, 2017StaticMeshes Example 1.7 "StaticMeshEditor" is all one word The word Static Mesh Editor is 3 separate words in unreal documentation https://docs.unrealengine.com/latest/INT/Engine/Content/Types/Sta ...
Crash Occurs Enabling new Audio Mixer with Audio Devices Disabled
UE - Audio - May 25, 2017If a user has all their audio devices disabled, and then enables the new audio mixer for 4.16, a crash occurs when trying to launch any new or existing project. This is a regression as this crash d ...
Start Up Movies Are not Playing for iOS Devices when using Launch-On
UE - Platform - Mobile - Dec 9, 2016When designating 3 Intro/Start Up movies to play back to back in the Project Settings of a mobile project, the user reports that they will play as expected for Android devices, but only one movie wi ...
Gamepad button press and hold does not hold focus
UE - Editor - UI Systems - May 25, 2017When using a gamepad (Tested with an X-box 360 Controller) if you press and hold a UMG button down and then use the D-pad or another form of movement the currently pressed widget component (In the t ...
Pressing the focus key twice in a Niagara System's preview window causes the preview to lose orbit around the system when moving
UE - Niagara - Apr 18, 2022Pressing the focus key twice in a Niagara System's preview window causes the preview to lose orbit around the system. Upon pressing the focus key again, the orbit remains lost. Alt + Left-Click also ...
InstancedStruct Local Variables do not work
UE - Foundation - May 7, 2025The licensee has noticed that local variables of type InstancedStruct return nullptr. The setup is a verification of the behavior. Class variables work normally. I've tested this behavior on every v ...