Unreal Engine Issues
Unreal Engine Issues
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 ...
Switch on Gameplay Tag does not correctly register tag alterations in Standalone game
UE - Gameplay - Blueprint - Oct 5, 2015Switch on Gameplay Tag does not acknowledge changes to Gameplay Tag variable in Standalone game. ...
A Client cannot join a Server after setting a GameMode in the OpenLevel node's Options string
UE - Networking - Nov 23, 2015A Client cannot join a Server after setting a GameMode in the OpenLevel node's Options string. Reproduced in 4.9.2 binary, 4.10.0 binary, and Main (CL# 2776829) ...
Show 3D Widget for vector variable in a blueprint component does not correctly appear in blueprint viewport when implemented
UE - Gameplay - Blueprint - Aug 6, 2015Setting a vector variable to editable and showing a 3D widget within a blueprint actor component does not show the 3d widget within a blueprint implementing the component. ...
Timer significantly lowers FPS as compared to tick running the same function
UE - Gameplay - May 1, 2015Timers set to a low time setting, but that are not set lower than tick, have a significant impact on FPS as compared to tick when updated a large number of objects at the same time. ...
Character BP yaw rotates at different speeds when played in Standalone vs. Selected Viewport
UE - Gameplay - Mar 12, 2015When you have a character in a level and if you setup the blueprint of the character as shown below, the rotation of the character will differ when played Standalone vs Selected Viewport. Photo of ...
ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor
UE - Networking - Mar 3, 2015ServerTravel from a map with a GameMode set to Use Seamless Travel and then ServerTravel back from a map without Seamless Travel enabled will crash the editor. Reproduced in 4.7.1 binary and Main ( ...
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 ...