Why is it that if you create for example a map and it is automatically called map 1 and then try create another map it will say map 2 and then another it will say map 3. But if you then destroy map 3 and map 2 and then try to create another map then it will be called map 4 instead of map 2. Why does this happen and how do you fix it? Each time you create a map and want to destroy/ redo a map and then create a another map it will just keep creating a new map in increments of  1 eg. map 1, 4, 5, 6. Instead of just creating a new map with the other map ID. How do I fix this?