Unreal Engine Issues
Unreal Engine Issues
Lighting Build Fails With High Density Foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jan 16, 2018Trying to build lighting on a map with high density foliage will fail lighting build or cause the editor to crash. This occurs in 4.15, 4.16, 4.17, and 4.18. There have been multiple reports of this ...
Editor will crash on attempt to load a previously-saved Blueprint asset with a serialized default subobject containing a serialized static array of two or more nested subobject instances.
A crash will result if a Blueprint class that's based on a native C++ class containing two or more nested, explicitly-instanced subobjects referenced by a fixed-size object array property are serial ...
Crash when ribbons use delayed spawn particle as source.
UE - Graphics Features - Dec 3, 2015User has found bug but has a working fix. Verify fix and implement in engine. ...
WASM HTML5 Runs out of Memory in Chrome versions 58+ on Windows
UE - Platform - Mobile - May 5, 2017We were seeing out-of-memory errors when launching on Chrome version 58 on Windows (both 32-bit and 64-bit). After some investigation, the root cause appears to be a regression introduced in Chrome ...
Crash when exiting PIE after execute demorec command
UE - Networking - Jun 8, 2018This issue is regression because it doesn't reproduce 4.18.3. Default level is just the level to move. Demorec level runs demorec command with beginplay and has one replicated variable. UEditorEn ...
Naming a Blueprint function/graph with non-ASCII characters can cause a build failure for certain cooked targets when Blueprint nativization is turned on.
UE - Gameplay - Blueprint - Nov 2, 2017This is due to the [Link Removed] encoded UFunction object name passing through UHT into the boilerplate code (*.gen.cpp) that gets generated from the nativized Blueprint's C++ header file. The iss ...
Set world or relative rotation on a child component sets the wrong rotation
UE - Gameplay - Blueprint - Aug 21, 2018Unexpected results from setting relative rotation on child of child in BP. Also confirmed in Main CL 4302610 "I have found that changing this code from RelativeRotationCache . RotatorToQuat (NewRe ...
Duplicate slots being created in Anim Slot Manager
OLD - Anim - Dec 11, 2015Duplicate slots are being created automatically under the Default Group in the AnimSlotManager. This is causing some problems because it replaces the originally created slot with the duplicate in t ...
Moving assets in the Editor fails to fixup references causing the project to generate errors
Tools - Mar 30, 2020Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...
Using Virtual Texture Streaming checkbox in texture editor can break materials
UE - Graphics Features - Feb 24, 2021A texture can be toggled between virtual texture and regular texture using the Convert to virtual texture/regular texture tool in the texture asset context menu. This updates referencing materials t ...