Unreal Engine Issues
Unreal Engine Issues
Bugg 66074: "SEGV_MAPERR at 0x3"
Tools - Aug 31, 2015The user is getting a consistent error which does not allow him to open projects in 4.8 and 4.9. Five reports from user's machine produce identical callstacks: Bugg 66074: [Link Removed] ...
Animation Track in Shot Does Not Animate With Evaluate Sub Sequences In Isolation Enabled
UE - Anim - Sequencer - May 15, 2018When Evaluate Sub Sequences in Isolation is enabled in a shot, other shots inside the same sequences only play the transform track and do not play their animation track Does not affect 4.18.3 Relat ...
Disabling "Apply Fogging" Doesn't Work for Translucent Material with Volumetric Fog
UE - Graphics Features - Jul 6, 2018Translucent materials with "Apply fogging" disabled will be affected by volumetric fog. Found in 4.19 CL# 4033788, 4.20 Preview 5 CL# 4173640, and 4.21 ...
Default Values missing from Local Variables in Blueprint Actor Construction Script
UE - Gameplay - Sep 19, 2019Specific to the Blueprint Construction Script, Local Variables cannot have their value set in the Editor, because the "Default Value" section of the Details tab will never appear. This only affects ...
Toggling Material Layer visibility in Parent Material doesn't propagate to children
UE - Rendering - Architecture - Materials - Jun 9, 2026When Material layer visibility is toggled on the Parent Material in a Material hierarchy, only the Parent’s layer visibility is affected, the children are not. Saving the Parent material has no effe ...
Casting to a child with a self reference can cause a crash
UE - Gameplay - Blueprint - Aug 13, 2015Casting to the child of a blueprint using the self reference (as the parent) throws a warning. Then placing a self reference anywhere in the event graph of the child by it's self will cause a crash ...
VR Preview crashes when the number of players is greater than one
UE - Platform - XR - Aug 18, 2015If the user has the number of players set to more than one, the VR preview will crash. ...
Crash when Opening the Class Defaults or Class Settings Tab within an Actor Blueprint
UE - Gameplay - Blueprint - May 19, 2015A crash occurs when attempting to open the 'Class Defaults' or 'Class Settings' tab of an Actor Blueprint. If the 'Details' tab is already open and you close it and attempt to reopen the options, th ...
Users are crashing on launch. D3D11 errors
UE - Graphics Features - Jun 23, 2015Users are experiencing this crash on launch. They all appear to have identical machines for the most part. They've tried different GPU's though. See the additional info URL [Link Removed] [Link ...
This project crashes with no crash report when a certain Blueprint is compiled
UE - Gameplay - Blueprint - Jan 28, 2015This user's project crashes with no crash report when its 'BP_Node' Blueprint is compiled. No crash report is generated and the log does not indicate a crash. Note: the project will not open after ...