Unreal Engine Issues
Unreal Engine Issues
Users custom 4.6 project crashes on load
UE - Simulation - Physics - Nov 24, 2014Users custom 4.6 project crashes on load. If the DefaultEngine.ini file is deleted, then the project will start fine. ...
Geometry Material Alignment not functioning in 4.8
Tools - Jun 15, 2015Material Alignment on BSPs are not functioning in 4.8.0 Release. This is a regression from 4.7.6. The issue does appear to be fixed and functional in 4.9 (Promotable-CL-2581018) ...
NavMesh does not update properly when "Can Ever Affect Navigation" is toggled
UE - AI - Mar 27, 2015if I place a mesh with "Can Ever Affect Navigation" set to true, then set it to false, it will leave the NavMesh with a bugged "hole" that AI does not path around correctly (causing the "Blocked" er ...
Split Pins on a referenced Macro Library will crash the editor on restart
UE - Gameplay - Blueprint - Mar 3, 2016Split Pins on a referenced Macro Library will crash the editor on restart 2 callstacks include, one for 4.10.4 and one for 4.11 Preview 6 User Description: I got some macros in my Object Macro Li ...
Fields with Maximum resolution are not affecting all leaves of a Geometry Collection
UE - Simulation - Physics - Destruction - Apr 25, 2025Fields with Maximum resolution are not affecting all leaves of a Geometry Collection on 5.4 and onwards. When calling GetRelevantParticleHandles() a Maximum Resolution field does return all particl ...
Enum to Byte conversion returns 2 for the first enum then 4 then 6 and so on rather than 0, 1, 2, etc
UE - Gameplay - Blueprint - Sep 1, 2015Enum to Byte conversion returns 2 for the first enum then 4 then 6 and so on rather than 0, 1, 2, etc. This is a regression; does NOT occur in 4.8.3. Reproduced in 4.9.0 binary and Main (2675088) ...
FBX imports incorrect vertex normals in 4.7
UE - Graphics Features - Mar 2, 2015Box reflection captures with some assets are not working correctly. The reflection capture is being tiled with version after 4.7 that were not in 4.6. Images are attached to demonstrate along with ...
Only 2 out of 4 Split Screen characters appear in TM-SplitScreen
UE - Gameplay - Oct 3, 2016Only two characters appear in the playing field after hitting PIE. There are 4 separate screens, which I expected there being one character for each screen. 4 Characters used to spawn and now only 2 ...
Apex Cloth gets crazy after upgrade to 4.14
UE - Simulation - Physics - Dec 22, 2016It has no this issue if only open previous cloth assets in 4.14The issue happens only if reimporting or updating the .apx or .apb and assign to the material slotReimporting both FBX skeletalmesh file ...
Major performance hit upgrading to 4.18 (game tick time - collision sweeps)
OLD - Anim - Jan 16, 2018As of 4.18 and onward, collision sweeps related to Character Movement seem to be causing higher tick times than usual. Example project: [Link Removed] Regression?: Yes This did not occur in 4.17 ...