When PCH is Disabled, Error Occurs in VulkanGenericPlatform.h at Android Build

UE - Graphics Features - Dec 6, 2018

If disable PCH in Target.cs, an error will occur when building for Android. The log is as follows. LogPlayLevel: Error: D:/Build/Release-4_21_0/Engine/Source/Runtime/VulkanRHI/Private/Android/../Vu ...

GoogleVR apps prevent adjusting the volume for the phone while running

UE - Platform - XR - Oct 3, 2016

4.13.1 has caused an issue where the volume can no longer be adjusted for a GoogleVR application. This is a regression of functionality in 4.13.0. Tested with build: Working: 4.13.0 Binary CL-310 ...

Instance UObjects in an array on an Actor replaced by pointers to other objects in array while PIE

UE - Gameplay - Blueprint Runtime - Sep 20, 2018

When this issue occurs printing out the addresses of each item in the array shows that elements 2 and 3 have the same address, so for some reason the second element's value is being overridden by th ...

Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1

UE - Networking - Feb 4, 2016

Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1. The Client pauses the timer as expected. With only one player, timers are paused as expected. ...

Cannot resize comment box when new comment is created on top

UE - Rendering Architecture - Materials - Apr 27, 2017

Cannot resize comment box when a new comment is created on top. The resizing affects the bottom right corner. This issue is dependent on how the comment is added if comment 1 is highlighted and a ne ...

Unexpected Changes in Saturation/Contrast of Colors when upgrading project to 4.15

UE - Graphics Features - Jan 30, 2017

When upgrading a project to 4.15 (in my case from 4.14.3), the colors seem to have shifted in contrast/saturation. It is not a huge difference, but noticeable enough to affect the overall result of ...

Promote to variable in a parent blueprint does not pass/preserve the non-default value in derived children blueprints

UE - Gameplay - Blueprint - Jul 11, 2018

When using the feature "promote to variable" on a pin that represents a value that is not an engine default (Example: Floats = 0.0, Booleans = False, ect..), that default value (for the variable tha ...

Assert when having too many VR devices

UE - Platform - XR - Aug 31, 2018

Internal team is encountering a crash when adding too many VR devices. Email thread titled "Re: Crash Logs" The bug is an internal limit of devices the code supports, which is 8. If a controller o ...

TArray64 RangeCheck prints the incorrect error messages for values over 32-bit length

UE - CoreTech - Apr 27, 2022

TArray64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regressi ...

Memory Usage Remains High After Exiting PIE

Tools - Nov 24, 2015

Originally, a project that uses about 500 mb of memory spikes to over 2 gigs during PIE. After exiting PIE, the memory usage remains well over 2 gigs and continues to rise. Found in 4.10 Binary. R ...