Unreal Engine Issues

Procecdural Mesh Components without a material assigned crashes on conversion to Static Mesh

This bug doesn't occur in 4.21. The issue is at line 157 in ProceduralMeshComponentDetails.cpp . When the procedural mesh has a material the crash doesn't occur. File location: Runtime/ProceduralMe ...

PrimaryAssetLabel Assets are getting stripped from ShooterGame on the Launcher

PrimaryAssetLabel assets are missing when creating the project through the UE4Launcher, they exist in Source builds. The ShooterGame PrimaryAssetLabel assets were created in 4.16 so this is not a r ...

Simulated physics after a delay causes physics objects to fall through one another if their collision is overlapping

Actors that simulate physics after a delay will fall through other physics actors if their collision is touching or overlapping. Note May be related to [Link Removed] Regression? (No), issue (doe ...

Datatable shows serialization of struct variables within a struct

If a datatable is created from a struct containing another struct, added rows will show serialization values in the datatable editor for struct variables. Regression (No) issue (does) occur in 4.1 ...

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input.

OnClicked event of UMG button fires once in twice if virtual joystick is receiving input. Both Andorid and iOS devices are affected. This issue is found with 4.9 update. under 4.8 are fine. ...

Color and Opacity animation option does not play for Button component

Color and Opacity animation option does not play for Button component, this occurs both in the Widget editor and during play. This issue is not a regression Versions Tested: 4.16.3 - CL: 3561208 - ...

Editor crashes upon PIE unless tick is disconnected and reconnected

Project crashes if user presses compile or PIE unless they first disconnect and reconnect event tick within blueprint component BP_BuildStage. Frequency: 4/4 CrashReporter: [Link Removed] ...

Importing low key frame animations with custom attribute curves have their keys offset affecting pose asset generation

When creating a pose asset based on an animation and curves with a low number of keyframes if you switch between the pose assets poses, the curves will not be correctly timed with the animation beca ...

Color changing through material parameter collection in a emissive material will not affect lightmap baking, unless recompile the material.

Landscape Grass Foliage Instances Culling Incorrectly

Foliage instances are culling incorrectly and seem to cull based off of the landscape components and/or entire foliage clusters. Regression? Yes, this issue does not occur in the 4.14.3 binary rele ...