Unreal Engine Issues
Unreal Engine Issues
FString.Mid doesn't react appropriately when given negative values for the Count variable
UE - Foundation - Core - Jul 16, 2015If you use a 5 character string (hello) to call the Mid function and provide 0 for start, -1 for count, it'll give you the entire string. This should either return an assert or treat all negatives a ...
Plugins are not creating shipping versions on package on Mac 4.23 Preview
UE - Foundation - Cpp Tools - Jul 15, 2019When you try to package a plugin on Mac in 4.23.0 Preview 1 there is no Shipping folder generated. This was verified to not happen in 4.22.3 (via Epic Launcher). Found in 4.23.0 Preview 1 CL# 72363 ...
Changing WITH_SUPSTEPPING prevents 4.10 from compiling
UE - Simulation - Physics - Nov 24, 2015In the file EngineDefines.h, changing 37 to read "#define WITH_SUBSTEPPING 0" will cause the solution to fail the build process. ...
Crash Occurs While Slicing Procedural Mesh Component
UE - Gameplay - Sep 19, 2016A crash is occurring when attempting to slice a procedural mesh that has the Create Other Half option enabled. Found in 4.13.0. Reproduced in Main CL 312 ...
Low-level memory tracking has negative values for "FMallocUnused" and "Untracked"
UE - Foundation - Core - Oct 6, 2020"FMallocUnused" is immediately bellow 0. "Untracked" is reported to go below 0 after very long playtimes (over 36 hours). Reported in version 4.25.3(CL 13942748). Tested and found negative values f ...
Memory increase when exiting PIE with Project Settings open
Tools - Nov 30, 2016Memory increase when exiting PIE with project settings open Regression: YES Broken: 3195953 (4.14.0) Worked: 3195953 (4.13.2) ...
open asset in editor crash (Objects have the same fully qualified name but different paths)
UE - Gameplay - Blueprint Compiler - Sep 15, 2022in 4.27 open this asset could not crash ,but 5.0.2 could get crashed ...
Changing value on float input pin does not automatically provide decimal point
UE - Gameplay - Blueprint Editor - Jun 8, 2017Entering a whole number value to a float input does not create a ".0" at the end. This was noticed as it causes a small quality of life issue with orphaned pins, where the user can't simply type th ...
UMG element clipping does not work on Galaxy S8 (Mali)
UE - Platform - Mobile - Mar 13, 2018UMG clipping requires stencil. Seems like we don't request stencil when creating backbuffer Changing const int EGLMinStencilBits = 0; to const int EGLMinStencilBits = 8; fixes this. ...
UE5.4 Preview 1 produces rendering artifacts on Landscape with World Position Offset
UE - Graphics Tools - Terrain - Landscape - Mar 28, 2024A material on a landscape with WPO will cause major ghosting, even if that WPO is a dynamic {0,0,0} ,such as from a black texture. ...