Unreal Engine Issues
Unreal Engine Issues
Editor crashed when opening TM-MeshPaint in QAGame
UE - Graphics Features - Jan 20, 2017While reviewing [Link Removed] test case, I hit the following crash opening the TM-MeshPaint level. On first attempt shaders were compiling, on attemps after, editor crashes much faster. ...
BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.
UE - Gameplay - Blueprint - Apr 20, 2017Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...
Exiting PIE with dedicated server checked causes editor to crash on Linux
UE - Platform - Linux - Oct 25, 2016Checking the box for Dedicated Server in the Play dropdown menu causes the editor to crash when exiting PIE. This does not occur in 4.13 or 4.14 on Windows. ...
Enabling Override Instance Data to a LevelSequencerActor that has a Shot Track can lead to crashing the engine
zComponent - Archive - Mar 17, 2025Enabling Override Instance Data to a LevelSequencerActor that has a Shot Track can lead to an Actor being translated really far, or even a crash in the engine. The licensee has encountered a particu ...
Crash when using a bitmap in a material.
TM - Core - Mar 3, 2025see repro steps: direct crash the material comes from FAB model: [Link Removed] ...
Copying a Folder in Sequencer and later Pasting it inside Sequencer is resulting in loss of Components
zComponent - Archive - Aug 8, 2025Copying a Folder in Sequencer and later Pasting it inside Sequencer is resulting in loss of Components. The pasted folder is not respecting the structure that was copied. This issue only happens on ...
[AI] Crash when gathering heightfield geometry on worker thread
UE - Runtime - Character - Jun 25, 2025From the body of the ticket: We aim to do as much of the work off the game thread as possible to avoid impacting frame rate. We've recently found a crash during collection of the geometry slices fr ...
Editor crashes when keying a frame to an Animation from Pose with Appended Frames
UE - Runtime - Animation - May 17, 2022This is a regression. Tested in //UE4/Release-4.27 CL18319896 Editor crashes when keying a frame to an Animation from Pose with Appended Frames. ...
Launch on fails during staging with a SafeCopyFile Exception for MfMedia.uplugin
Tools - Jan 10, 2017Was able to repro this on machines with and without machines set up for Xbone testing. ...
Swapping the C++ Root Component from a Child BP class, pressing Save, Compile, but not Saving afterwards, will leave the Root Component in a locked state, meaning the it cannot be viewed or edited in the Details Panel after an Editor restart
UE - Framework - Blueprint - Dec 9, 2024Swapping the C++ Root Component from a Child BP class, pressing Save, Compile, but not Saving afterwards, will leave the Root Component in a locked state, meaning the it cannot be viewed or edited i ...