Unreal Engine Issues
Unreal Engine Issues
OnRep functions do not fire on the Server when elements are added to an array variable marked as RepNotify
UE - Networking - Mar 17, 2015OnRep functions do not fire on the Server when elements are added to an array variable marked as RepNotify. They do not fire at all when setting an array element with the Set Array Elem node. Proba ...
Anti-Alias from Draw Line Function does not fully appear on Android
UE - Platform - Mobile - Aug 24, 2015Some of the lines within the launched or packaged version on Android for the draw line function, but not all of them do. This has been checked on iOS and it's working perfectly fine in both 4.8.3 an ...
Docking tabs to the main viewport will hide other viewports that are not docked
UE - Editor - UI Systems - Slate - Mar 3, 2015If any tabs are undocked from the main viewport and another tab is then docked to the main viewport it will hide any undocked tabs. This only appears to affect tabs that in the Menu > Window with ex ...
Compiling any material in UE 5.5.1 without ShaderCompiler JobCache results in a crash
UE - Rendering Architecture - Shaders - Jan 15, 2025Compiling any material with r.ShaderCompiler.JobCache=0 causes ShaderCompileWorker to crash. Reproduction steps cause a crash during Editor startup, but this bug may affect other scenarios where mat ...
Assertion Failure: Cascade Particle !bPostTickComponentUpdate in same tick group as Cascade Particle system submission.
UE - Niagara - Apr 18, 2019Attached Project: [Link Removed] Since Upgrading project to 4.22, Licensee has been experiencing an Assertion crash in their built game. "I'm not exactly sure why it crashes. It's a very specific ...
Import with New File option for Anim Sequences does not function
UE - Editor - Content Pipeline - Import and Export - Feb 14, 2022The "Reimport with New Source" functionality is currently not functioning in the Editor. When selecting the option with a clearly edited Anim, it is not updated. There is no message in the Output Lo ...
Chaining AutomationTool Commands leads to an endless loop
UE - Foundation - Cpp Tools - Automation Tool - Nov 23, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to not be a regression since the error also occurs on the previous live version. This is regression ...
Expose on Spawn option removed from BP Editor for User Created Structs after Migrating
UE - Gameplay - Blueprint Editor - Dec 14, 2022Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. Only seems to occur with User Defined Structs. Testing with other variable types, but all ...
[Interchange][FBX] Fail to import attributes animation curves with key values as integer
UE - Editor - Content Pipeline - Import and Export - Jan 13, 2025cf[-https://forums.unrealengine.com/t/5-5-not-able-to-import-animation-curves-since-5-3-5-5/2267442/4-] Be carefull there is 2 bugs reported on that Forum and I think they are not related. The firs ...
Eye Shading Model renders Emissive unexpectedly when using a FloatRGBA scene format
UE - Graphics Features - Apr 5, 2024This appears to be caused by the colour format. It only occurs when the scene format has an alpha channel. FloatRGB (format 3) doesn’t exhibit these issues. Unfortunately, format 4 is the default fo ...