Unreal Engine Issues

Adding a widget to a grid panel inside the grid panel tick can cause an out-of-bounds error

This is caused by adding an item to a grid panel inside the grid panel iteration loop. The same operation to canvas panel goes well without any errors. The difference is that the array iteration in ...

Invalidation panel content in a widget component can become misaligned if Cache Relative Transforms is enabled

When Cache Relative Transforms is enabled, panel content sometimes appears to update a frame late. This can cause the panel content to render outside of the panel. ...

The DefaultSceneRoot's tooltip claims adding a new scene component will automatically replace it as the new root, but this is no longer true

The DefaultSceneRoot's tooltip claims, "Adding a new scene component will automatically replace it as the new root", but this is no longer true in 4.8 and 4.9. Instead, the DefaultSceneRoot remains ...

The FNetNameMapping::GetUniqueName function appends numerical values to the end of the previous name instead of replacing the previous name's numerical value

The GetUniqueName() function attempts to make sure that all node names are unique. For nodes that are used a large number of times, it adds a numerical value to the end of the name. Prior to 4.18, t ...

Opacity of Translucent Materials in UMG Retainer Box Inconsistent

Using a translucent material with a 0 opacity does not seem to be working when using a retainer box that is attempting to apply it to the image. When the material is set to additive or masked, it w ...

UMG SetAnimationCurrentTime no longer works

Selecting a Struct variable when binding a property in UMG can cause an infinite number of selections

If a struct with a Texture 2D variable is chosen when creating a binding for the brush it can create an infinite number of windows. Note: If done enough the editor will crash ...

When using the Delete key to delete a key frame for an animation in UMG the entire timeline is removed

When using the delete key to remove a key frame from an animation timeline the entire timeline is removed. ...

Tooltips spawn below content widget of a menu anchor within a menu anchor

Tool tips will appear under the content of two nested menu anchors. This occurs because of the 'Should Defer Painting After Window Content' option, enabled by default. The second defer will cause co ...

OnOpening for the ComboBox(string) fires off when ever the widget is clicked not just when opening

The Combo box (String)'s On Opening event fires off whenever the user clicks the combo box. This means that the opening event will fire off on closing as well as opening. ...