Unreal Engine Issues
Unreal Engine Issues
Compiling a Blueprint that references a deleted Macro from a Custom Macro Library will crash the editor
UE - Gameplay - Blueprint - Sep 3, 2015Compiling a Blueprint that references a deleted Macro from a Custom Macro Library will crash the editor. Crash Report: [Link Removed] This is a regression: did NOT occur in 4.8.3. Reproduced in 4. ...
Crash when loading TM-MotionControllers in a packaged build
Docs - Samples - Oct 26, 2016Packaged QA Game crashes when opening "TM-MotionController" This issue did not occur in 4.13 This is also affecting KiteDemo. Cinematic will crash when Editor Content is not included in the packag ...
Crash Importing Skeletal Mesh LODs with a lot of morph targets
OLD - Anim - May 18, 2016Crash Importing Skeletal Mesh LODs with a lot of morph targets Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 785] Array index out of bounds: 2 from an ar ...
Particle Cutout Crashes On Mobile Devices That Don't Support Hardware Instancing (Mali-400 GPU)
Particle cutout seems to crash on lower end mobile devices. We believe this is because there is an issue in the particle's SubUV feature. This happens only on devices that don't support hardware ins ...
Crash on suspend
UE - Platform - Mobile - Oct 13, 2015User has reported a crash on suspend related to the display link when the game is set to be frame rate locked. ...
.wav files with max concurrency count data outside proper range will crash editor when played
UE - Audio - Apr 12, 2016Editor crashes if a set of sound files provided by a user is played. This occurs in any project that the asset is migrated to. Frequency: 5/5 NOTE If the asset is exported outside of the editor ...
This user's project crashes when instanced levels and the player pawn are unloaded and destroyed
UE - Gameplay - Jun 25, 2015This user's project crashes when instanced levels and the player pawn are unloaded and destroyed. This occurs in the ProjectLevelGameMode Blueprint, in the Touched Finish Point commented area. This ...
Crash when exporting static mesh actor to FBX (Array index out of bounds)
UE - Editor - Content Pipeline - FBX - Apr 25, 2025I set the Forced LOD Model on the mesh component > 1, then tried to export, this is what causes the crash. Here is my suggested fix, we just don't use Git or I'd do a PR: In the else() branch of FF ...
Crash when opening a data table based on a struct named actor
Tools - Jun 29, 2016If the user creates a structure, names it "Actor", then creates a data table based on the struct then the data table will cause a crash on open(opening the data table). ...
Renaming Parent component to same name as a component in child causes crash from child blueprint
UE - Gameplay - Blueprint - Aug 1, 2017Renaming Parent component to the same name as a component in the child blueprint causes a crash from child blueprint when you press enter. When you reopen the project from the crash, the child bluep ...