Unreal Engine Issues
Unreal Engine Issues
Apex Destruction - Destructible Mesh disappears after Fracture
UE - Simulation - Physics - Destruction - Jan 3, 2020Fracturing a mesh with Apex Destruction in 4.24.1 (CL-10757647) causes the mesh to disappear after clicking Fracture. This behavior was not present in 4.23.1 (CL-9631420). Unable to confirm this in ...
Inverted normals with Datasmith .STP import
UE - Editor - Content Pipeline - Datasmith - Importer - Jan 15, 2020When importing this .stp file through Datasmith, the normals are inverted upon import. Attached are screenshots of the normals in AutoDesk Alias and McNeel Rhino. This was reported and tested in 4 ...
Memory leak after simulating in Editor with opened 'Editor Preferences' tab
Tools - May 7, 2020This can be repeated many times before the editor crashes without any messages and other programs with the video driver crashes too. Because out-of-memory. This is similar to [Link Removed]. This w ...
Low-level memory tracking has negative values for "FMallocUnused" and "Untracked"
UE - Foundation - Core - Oct 6, 2020"FMallocUnused" is immediately bellow 0. "Untracked" is reported to go below 0 after very long playtimes (over 36 hours). Reported in version 4.25.3(CL 13942748). Tested and found negative values f ...
Parameter distributions can be reset to None in Cascade Particle Systems, causing Cascade to Niagara conversion to crash the editor.
UE - Niagara - Apr 18, 2022Cascade to Niagara conversion causes the editor to crash due to any distribution parameter in the Particle Emitter being reset to none. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL# 1831 ...
Editor crashes when right clicking .csv data table
UE - Gameplay - Dec 24, 2014Right clicking a csv data table in content browser crashes editor. Frequency: 3/3 CrashReporter: [Link Removed] Callstack: MachineId:4E82586D46B558EA69EF0EAA821297B1 EpicAccountId:1558531203f8 ...
Crash when calling an event with an enum reference parameter with literal
UE - Platform - Linux - May 1, 2018The issue appears to be the type of the input pin on the custom event(or function - both behave the same), under normal circumstances it should allow you to pick the enum from a list on the calling ...
LIVE: Advanced Lighting Map (new default map in Release) has a Skybox the generates Error on Lighting Build
Docs - Samples - Oct 23, 2014Opening the Advanced_Lighting Map, the new default map with 4.5.0 and 4.5.1, the Skybox has 4 UV Channels but all of them have overlapping UVs. WORKAROUND - You can Auto Generate UVs for the Skyb ...
Drag in event graph does not work after touch event with breakpoint
UE - Editor - UI Systems - Slate - May 3, 2017Dragging in event graph does not work after touch event with a breakpoint. This issue persists after the PIE has stopped as well. But the issue is resolved when the project is reopened. Regression: ...
Code based interfaces do not appear in Interface selection dropdown
UE - Gameplay - Blueprint - May 4, 2017When adding an interface to a blueprint, only blueprint created interfaces are available. Engine / custom interfaces written in code are not listed. Regression: Yes - custom interfaces are present ...