Unreal Engine Issues
Unreal Engine Issues
Crash on Mac on exit.
Media Framework - Aug 17, 2020A licensee reported trouble with a crash on exit on Mac. They discovered that the file AvfMediaPlayer.cpp, on the function Open there is this piece of code:// Force the AV player to not be able to ...
Regression - Nav mesh is not generated on BSP brushes after loading a map
UE - AI - Navigation - Dec 18, 2024In UE 5.5, when loading a map and selecting "Build – Build Paths", the nav mesh is not generated on any BSP brushes (although it is correctly generated in static meshes). This did not happen in earl ...
Regression - Nav mesh is not generated on BSP brushes after loading a map
UE - AI - Navigation - Jan 14, 2025In UE 5.5, when loading a map and selecting "Build – Build Paths", the nav mesh is not generated on any BSP brushes (although it is correctly generated in static meshes). This did not happen in earl ...
Form Extended Structures will only destroy one mesh but not any attached
UE - Simulation - Physics - Destruction - Nov 28, 2014DESCRIPTION: While using form extended structures enabled for a Destruction mesh one of the meshes will be able to be damaged while any others attached will not fracture or damage at all. For exam ...
Using Tortoise SVN causes the engine's source control to be inconsistent
Tools - Jun 16, 2015If a user decides to use Tortoise SVN, the error messages given for needing to have things checked out is inconsistent. If there is a blueprint which references another blueprint, and the reference ...
UE4Editor_SlateCore!TSharedFromThis<SWidget,0>::AsShared() sharedpointer.h:1221
Tools - Apr 18, 2017This bug report was entered as new crash groups appeared linking to [Link Removed] which was marked as fixed for 4.15.1 and the previous reproduction did not reproduce the issue Error message: Ass ...
Float Curve evaluation may yield completely wrong results due to floating-point precision issue
UE - Anim - Runtime - Oct 31, 2024Note: This is possibly related to [Link Removed]. For some inputs, function UE::Curves::WeightedEvalForTwoKeys() inside file "CurveEvaluation.cpp" can incorrectly return the value of the first key, ...
Reference to control rig can be lost on actors with multiple skeletal mesh components
UE - Anim - Rigging - Control Rig - Apr 4, 2023In the attached project, when we initially add a control rig track for the actor with multiple skeletal mesh components, we add the control rig for the correct component because FControlRigParameter ...
A physics actor will still bounce if the Restitution of a Physical Matieral is set to 0
UE - Gameplay - Oct 6, 2016A physics actor will still bounce if the Restitution of a Physical Matieral is set to 0 User Description: Explanation : I am trying to create a Badminton Game for fun and while I was trying to han ...
Changing blueprint default values inside arrays only updates loaded child blueprints
UE - CoreTech - Jul 30, 2020The rules for delta serialization in UE4 are complicated, and the editor tries to hide them from you, which works 90% of the time but can lead to confusion and data loss in other situations. In the ...