fix Apply. It had not been tracking the correct item number.

SpriteLibrary/SpriteEntryForm.cs

@@ -405,8 +405,9 @@ namespace SpriteLibrary
             }
             else
             {
-                SpriteInformation.Add(TempInformation.Clone());
-                CurrentSIIndex = SpriteInformation.IndexOf(TempInformation);
+                SpriteInfo tSI = TempInformation.Clone();
+                SpriteInformation.Add(tSI);
+                CurrentSIIndex = SpriteInformation.IndexOf(tSI);
             }
             UpdateMenu();
         }