NullReferenceException: Object reference not set to an instance of an object
tk2dSpriteCollectionBuilder.UpdateVertexCache (.tk2dSpriteCollection gen, Single scale, tk2dEditor.Atlas.Data[] packers, .tk2dSpriteCollectionData coll, System.Collections.Generic.List`1 spriteLuts) (at Assets/Editor/tk2d/Sprites/tk2dSpriteCollectionBuilder.cs:1477)
tk2dSpriteCollectionBuilder.Rebuild (.tk2dSpriteCollection gen) (at Assets/Editor/tk2d/Sprites/tk2dSpriteCollectionBuilder.cs:1279)
tk2dSpriteCollectionEditorPopup.Commit () (at Assets/Editor/tk2d/Sprites/SpriteCollectionEditor/tk2dSpriteCollectionEditorPopup.cs:446)
tk2dSpriteCollectionEditorPopup.DrawToolbar () (at Assets/Editor/tk2d/Sprites/SpriteCollectionEditor/tk2dSpriteCollectionEditorPopup.cs:436)
tk2dSpriteCollectionEditorPopup.OnGUI () (at Assets/Editor/tk2d/Sprites/SpriteCollectionEditor/tk2dSpriteCollectionEditorPopup.cs:835)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Applications/buildAgent/work/84669f285f6a667f/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
After that, weird behaviours occur, more errors when trying to use the collection or empty collection after reloading the project, or collection not appearing in a sprite's collection list.
Any idea how to fix that?
EDIT: Happens when dicing 128x128 is enabled. I think I nailed it for you, it happens when an animation has an empty png for exemple, dicing on an empty png = BOOM!