Unreal Engine Issues
Unreal Engine Issues
Unable to launch version 4.24.1 after fresh installation. Assertionfailed IsValid()
Tools - Dec 31, 2019User is receiving a crash after a brand new installation of version 4.24.1 NOTE: User is able to launch 4.20 - 4.23.1 without issue. "I tried reinstalling the editor build, updating all of my dr ...
Setting Fullscreen Mode to "Fullscreen" results in Crash when using 4.23 from source
UE - Rendering Architecture - RHI - Oct 11, 2019Changing the screen settings to Fullscreen through code or blueprints results in a crash. This only happens in the source version of 4.23 and does not occur in the binary version of 4.23. I have att ...
Bulk Edit via Property Matrix menu is not appeared for Materials in Content Browser on 4.8
UE - Editor - Content Pipeline - Content Browser - May 20, 2015Bulk Edit via Property Matrix menu is not appeared for Materials in Content Browser on 4.8, but 4.7 can show and edit with Property Matrix. Screenshot: attached. ...
C++ Projects Crash in Mac OS 10.11 El Capitan when No Audio Device is Present
UE - Platform - Apple - Dec 22, 2015This issue has been reported by two different users with very similar circumstances: Both report the editor freezing when trying to compile UE4.10 C++ Projects running Mac OSX 10.11.1 if no audio i ...
FScreenSpaceData in Material Custom Expression Does Not Work in 4.19p2
UE - Graphics Features - Jan 26, 2018When creating a Post Process material in 4.19 with a Custom expression that uses FScreenSpaceData, material editor is unable to compile, and material renders incorrectly. This does not happen in 4.1 ...
HTML5 cannot package on Windows 10
UE - Platform - Mobile - Jul 29, 2016HTML5 is not packaging or launching onto browsers in 4.12.5 on Win10 machines. ...
UE 4.6.1 Memory Game Causes Mac OSX to Crash
Tools - Jan 19, 2015On a Mac running OSX 10.10.1, the launcher crashes when the user selects the "Memory Game" located in the "Learn" section under "Example Game Projects." ...
GPU Particle Emitter noticable stutter with steady stream
UE - Graphics Features - Apr 1, 2016When using a GPU particle and setting a steady stream there is an obvious stutter compared to 4.10.4 where everything worked smoothly. Regression: YES This issue did not occur in 4.10.4 CL-2872498 ...
REGRESSION: HierarchicalInstancedStaticMeshComponent LOD transitions are broken in 4.9 and Main
UE - Graphics Features - Aug 24, 2015While testing another fix I noticed HISM LOD transitions are not working in Main or 4.9 branch. There is no screen-door effect and multiple LODs seem to be rendering simultaneously compared to 4.8. ...
Nav Modifier Volumes continue to affect navigation when the sublevel is removed
UE - AI - Oct 13, 2016Nav mesh is still affected by a nav modifier volume when added to a sublevel and then the sub level is removed. Topdown character will not move into the space affected by Nav Modifier volume so not ...