Sprite Crash Bug

me too, i get this similar error. 
Always boots me back to the lobby. i don't have any paintings placed in the game.

Exception (cs:153740): ArgumentException: Could not create sprite (0, 0, 512, 512) from a 256x256 texture.
UnityEngine.Sprite.Create (UnityEngine.Texture2D texture, UnityEngine.Rect rect, UnityEngine.Vector2 pivot, System.Single pixelsPerUnit, System.UInt32 extrude, UnityEngine.SpriteMeshType meshType, UnityEngine.Vector4 border, System.Boolean generateFallbackPhysicsShape, UnityEngine.SecondarySpriteTexture[] secondaryTextures) (at <00000000000000000000000000000000>:0)
UnityEngine.Sprite.Create (UnityEngine.Texture2D texture, UnityEngine.Rect rect, UnityEngine.Vector2 pivot, System.Single pixelsPerUnit, System.UInt32 extrude, UnityEngine.SpriteMeshType meshType) (at <00000000000000000000000000000000>:0)
%ca2e318f3421a96db4bfd58ca1e7e81a1c14bedd+<LoadIcon>d__10.MoveNext () (at <00000000000000000000000000000000>:0)
UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) (at <00000000000000000000000000000000>:0)