Unreal Engine Issues
Unreal Engine Issues
Editor crashes when right clicking a box collision after adding a converted static mesh in blueprint editor
UE - Gameplay - Blueprint - Sep 1, 2016I created a cylinder with a subtractive cylinder inside of it. I also used a box BSP with a subtractive box inside of it and got the crash to repro. I tried with a sphere BSP twice and didn't get ...
Niagara - The "Apply" button on the toolbar does not get enabled when changing the checked state of an entry in "Propagated Static Switch Values" for a function call node.
UE - Niagara - Apr 7, 2025Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. Now consider another Niagara Function Script or Module Script ...
Niagara - When a Static Switch is used inside a Niagara Function Script with "expose as pin" disabled, its Selector variable is exposed as an input on function call nodes. However, this input incorrectly loses its "static" type.
UE - Niagara - Apr 7, 2025Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. When the function is called by another Niagara Function or Niag ...
Editor is crashing on Startup after opening a copy of older project
UE - Foundation - Core - Jan 16, 2015Edit: Looks like failing to read the DDC when compiling global shaders User is getting a crash when they are attempting to open a copy of their project from version 4.4.3. Attached CrashLogs, DXd ...
Custom lighting channels ignored when object culled in stereoscopic
UE - Platform - XR - Apr 14, 2016When a light that uses lighting channels is only visible in one view during stereoscopic rendering, it affects the default light channel instead of the assigned one in the view that it's not visible ...
Array OnRep Notification Not Running on Server
UE - Networking - Nov 30, 2016Array variables marked as RepNotify are not calling OnRep on the server when they are not directly set using a Set 'VariableName' node. Found in 4.14.0 CL# 3195953 Reproduced in 4.13.2 CL# 317229 ...
Find Sessions Consistently Returning Results Length of 0
UE - Networking - Feb 24, 2017It appears that as of 4.15, there is an issue with creating/joining sessions. The attached test project worked fine previously in 4.14, but now is unable to join sessions. The user has stated: Th ...
Low FPS in Kite Demo
Tools - Mar 9, 2017When attempting to play the GDC_Landscape_01 map in Editor or as Standalone Game, game plays with very low FPS ~ 3-10 on machines that should be able to handle 30+. While testing for regression, ra ...
Mesh vanishes on BP compile (components created by components issue)
UE - Gameplay - Blueprint - Mar 29, 2017When a mesh is declared in a custom component class and that component is added to an actor class, compiling a blueprint based on the actor class will cause the mesh set in the component to vanish i ...
[CrashReport] Mac crash in UE4Editor-Engine.dylib!LoadPhysXModules()::$_0::operator()()
UE - Platform - Apple - Jun 8, 2017This is a common Mac crash that has been occurring since 4.15. It shares the same callstack with [Link Removed], but that was verified fixed for 4.16.0, while this crash still continues into 4.16. ...