error kicking players

disconnecting: Exception (cs:155243): 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) %5e80d3b5c3a230bf96aa7f0e4ef434535fd8fe25+<LoadIcon>d__10.MoveNext () (at <00000000000000000000000000000000>:0) UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) (at <00000000000000000000000000000000>:0) 

I have players getting this error when trying to skin a facemask, we removed all custom skins thinking it was a bugged skin and that did not fix it.  any word?