Unreal Engine Issues
Unreal Engine Issues
Increase in Engine Stats for large amounts of Hierarchical Instanced Static Mesh Components
UE - Graphics Features - Apr 18, 2017Increase in Engine Stats for large amounts of Hierarchical Instanced Static Mesh Components User Description: We are having performance drops of almost 5ms in 4.15 when using "Hierarchical Instanc ...
[CrashReport] Mac/Metal Intel compiler crash - UE4Editor-MetalRHI.dylib!CreateMTLRenderPipeline()
UE - Graphics Features - Oct 27, 2017Mark S: This is an Intel compiler failure on macOS 10.12.6. Callstack from LogAssertion failed: [File:/Users/build/Build/++UE4+Release-4.18+Compile/Sync/Engine/Source/Runtime/Apple/MetalRHI/Privat ...
Incorrect values filled for nativized struct arrays when resized and packaged
UE - Gameplay - Jun 4, 2018When packaging a resized structure array it changes the array value to a large incorrect number. Testing the struct in PIE yields expected results. ...
Disabling "Support Stationary Skylight" Causes Crash With Forward Shading Enabled
UE - Graphics Features - Jul 30, 2018Disabling 'Support Stationary Skylight' crashes if you select anything in the editor when Forward Shading is also enabled. Working as expected 4.19 4033788 Found in 4.20 CL# 433996 and 4.21 CL# 42 ...
Enum to string conversion has different results in PIE vs Cooked builds
UE - Gameplay - Blueprint Runtime - Aug 17, 2021This is because the metadata is editor only and will be stripped in a cooked build. We should make the behavior of the to string function consistent between PIE and a cooked build. ...
Natively declared Gameplay Tags aren't counted by Reference Viewer when set default by ctor
UE - Gameplay - Jul 11, 2024Similar to Issue 199247 ([Link Removed]), Natively declared Gameplay Tags aren't counted by Reference Viewer when used in a variable set in a C++ ctor. ...
Cascade - Some Delayed Particle Emitters Don't Function with High Delta Times
UE - Niagara - Cascade - May 13, 2025This is a Cascade issue from a UDN where single loops can be skipped if the DT is high enough. ...
Change GetDisplayName to same behavior in all builds.
UE - Gameplay - Apr 9, 2015Edit MattK: The display name is different when running PIE through the editor. This sort of inconsistency seems wrong. We should probably not ever be using the display name. Spaces are removed fro ...
Tool tips on the main monitor scale to the DPI of the secondary monitor.
Tools - Aug 2, 2016If the user has different DPI Scaling set on each monitor, the main monitors tool tips will change size based on the secondary monitor. ...
Preview Asset Becomes Detached from Socket When Renamed
Tools - Dec 28, 20174.17: The preview mesh disappears entirely when the name of the preview asset is changed When a preview asset is applied to a socket, and the socket is renamed, the preview asset becomes detached ...