Unreal Engine Issues

Parameterized Vector4 is treated as Float3

A Parameterized Vector4 are being treated as Float3. This prevents users from being able to use Vector4s in an If node during runtime. This is seen as far back as //UE4/Release4.22 cl 8065155 so th ...

Making a hidden level the current level changes tile position in World Composition

[AI] Navigation memory set in NavMeshMemory::ForAnyElementType::ResizeAllocation shows as Untagged in LLM instead of being under Navigation.

Licensee found that memory being allocated during a resize in NavMeshMemory is not being tagged within LLM as NavigationMemory but show in LLM as Untagged memory. They do not have a callstack showca ...

Crash when opening or editing a DataTable with a Row Structure that contains a BodyInstance

If a DataTable Asset is created with a Row Structure that contains a member variable of type BodyInstance, the Editor will crash when attempting to open it while it has no rows. It will also crash w ...

Translucent Materials do not work well with Depth of Field

Depth of Field do not work well when using a translucent material, even if the material has no opacity set. Image attached as reference. Light brown colored mesh is translucentGray mesh is opaque ...

Set Material for a DM in the Construction script will result in a crash

Setting a material in a BP construction script after setting a DM will result in a crash. This will render the BP inaccessible once the project reloads. Opening the BP will result in an instant cras ...

Canceling the Color Picker while modifying Curve Editor colors Moves Transforms Curves

If the user presses 'Cancel' when modifying colors using the Color Picker within the Curve Editor, the curves points are all transformed. Issue is reproducible in the below engine versions: 4.8.3 - ...

Foliage frustum cull based on incorrect bounds size

When changing the static meshes of a Foliage instance by swapping the mesh or changing the scale (build settings) of the mesh, the bounds for the mesh do not appear to update to use the new bounds. ...

Adding variables to a struct clears struct arrays used in blueprints

Adding variables to a struct clears struct arrays used in blueprints. Regression (yes) issue (does not) occur in 4.12.5 ...

Physics assets in blueprint react differently in sublevels

Physics assets within a blueprint react improperly when placed in a sublevel. This error can clearly be seen within a user's youtube video located here: [Link Removed] Note: The fan asset attac ...