Unreal Engine Issues
Unreal Engine Issues
Delay does not tick when game is paused
UE - Gameplay - Blueprint - Jan 4, 2021Delay nodes no longer fire within a paused actor even if that actor has been set to 'Tick Even when Paused' Removing the delay node from the equation allows the print node to continue firing while ...
Potential Memory Leak when frequently terminating and re-initializing FConstraintInstance
UE - Simulation - Physics - Mar 29, 2022From User: When frequently terminating and re-initializing the FConstraintInstance, there appears to be a leak when cleaning up the disabled joint, which leads to an ever growing list that gets sort ...
SetOneWayInteraction functionality has no effect on the simulation
UE - Simulation - Physics - Nov 11, 2022Calling SetOneWayInteraction on a BodyInstance has no effect within the physics engine. The state of the flag is passed in to Chaos but nothing actually uses the value once it is there. It is expe ...
[Interchange] Crash on asset re-import
UE - Editor - Content Pipeline - Import and Export - Feb 7, 2025We've started seeing a crash in editor when re-importing one of our assets. <pre class="ql-syntax">Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 783] Array index out of ...
OSX editor fails to run on "older" hardware
at first, a "OpenGL Not Supported" message box appears and then the Editor instantly crashes after the "OK" button has been pressed. I tried again, but this time, passing in the "-opengl" flag. it ...
Foliage disappears after 1.5k if occlusion culling project setting is disabled
UE - World Creation - Worldbuilding Tools - Foliage - Aug 30, 2017When unchecking the Occlusion culling option in the project settings, if you place over 1.5k foliage meshes in the world, they stop rendering, the meshes are still present in the level and can be se ...
Preformance drop when calling draw to render target
UE - Graphics Features - Jun 19, 2018There is a major performance drop after 4.18 when calling draw material to render target. This is an issue reported by many community members, and there seem to be additional reports with different ...
The result of the Attach target change operation using AttackTrack's ContextMenu varies depending on the flow
UE - Anim - Sequencer - Jul 6, 2018At present AttackTrack's context menu has three patterns of Attach target change flowChange constraintBindingIDUse ExsitBindingUse NewBinding However, 1 and 3 can correctly change the target, but t ...
Editor Crashes When Attempting to Create/Open a Blueprint While 'Show Friendly Variable Names' is False
UE - Gameplay - Oct 12, 2018When the 'Show Friendly Variable Names' option is set to false in Editor preferences, attempting to create (once you press 'Enter' to accept the new Blueprint name) or open a Blueprint causes the ed ...
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 ...