Unreal Engine Issues
Unreal Engine Issues
Steam friends list is duplicated when opened for a second time in the packaged version of Shooter Game
UE - Networking - Jun 29, 2015If a user is logged into a Steam account with between 1 and ~10 friends (Max depends on resolution, as it'll push the excess off the screen) and they open the friends list multiple times, it'll dupl ...
Consolidate ScreenSize code and refactor to avoid confusion
OLD - Anim - Aug 22, 2016We do have very inconsistent system between Static/Skeletal and the current name is set for ScreenSize. However, Static mesh and HLOD are using ScreenSize name for Screen area calculation. We wan ...
ARCore plugin missing 'tools' components
UE - Platform - XR - Jul 28, 2018https://forums.unrealengine.com/development-discussion/vr-ar-development/1494917-ue-4-20p4-arcore-image-database-cannot-build/page2 Bo Pang from Google writes: "I think there are two issues here: 1 ...
Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP) makes Physics simulating ragdolls fly off into space.
UE - Simulation - Core - Sep 26, 2024Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP - slomo sets TimeDilation) makes Physics simula ...
Exported Particle Emitter Tries to Reference Graphs of Original System
UE - Niagara - Dec 7, 2017User reports that the bug was initially discovered in 4.18 and then reproduced in 4.16 project (attached). Per User: For some reason when exporting this emitter to any other system bugs out. When ...
Sub Surface Shading Model has Strange Blotch Color Artifacts when Used with a Ambient Cubemap
UE - Graphics Features - Sep 23, 2019Sub surface shading model has strange blotch color artifacts when used with ambient cubemap. Since the subsurface profile shading model can't be used with ambient cubemap I wanted to use the regular ...
Updates to DesiredFocusWidget for a UserWidget are not propagated to existing instances of it inside the WidgetTree of other widgets
UE - Editor - UI Systems - Nov 17, 2025This issue has been reproduced in UE 5.3 to 5.7 and source versions. A repro project is available. Below are the findings from an initial investigation of the problem. Normally, when a UserWidget p ...
The Height of a Jump When Holding the Jump Button is Dependent on Framerate
UE - Gameplay - Player Movement - Nov 20, 2015Setting the Max Jump Hold Time variable to 1 second, and then holding the jump button produces different results depending on the framerate. In this case, the normal jump is at a specific height, bu ...
Niagara crash when using a particle attribute reader that has been passed around between modules
UE - Niagara - Oct 28, 2025The following Niagara usage pattern results in either a crash or in incorrect data being read from a Particle Attribute Reader: Emitter Spawn Stage – A module has an Attribute Reader input specifie ...
Image widget does not scale the inner borders correctly
UE - Editor - UI Systems - Oct 24, 2014When Scaling in and out in the UMG blueprints with an image applied to an image widget that is set to border as it's "Draw as" selection the image does not scale correctly. EDIT: The UI should prev ...