Issue De-referencing a Pointer to a Struct in an Array

[Pen Hall]

Hello!
In my program, I have defined a struct called `Tile` in the 
global scope. In my `main()` function I create a 3d array of 
`Tile`s called `board`. I then have a function called 
`loopBoard()` that loops through certain parts of `board`. I then 
create a reference to the `Tile` struct at the current position 
of `board`. This all works until I try to de-reference that 
pointer. The result compiles, but I get the exit code 
`-1073741819` whenever I run it. Below is the function in 
question. Do any of you have literally any clue about where I'm 
screwing up?

```d
void loopBoard(Tile[8][8][8]* board, void function(int, int, int, 
Tile*) func){
	for(int number = 7; number >= 0; number--){
		writeln(number);
		for(int symbol = 7 - number; symbol < 8; symbol++) {
			writeln("  " ~ to!string(symbol));
			//((x % y) + y) % y to make modulo work as expected
			int letter = (((symbol - 7) % 7) + 7) % 7;
			if(letter == 0 && symbol != 0)
				letter += 7;

			int[2] lArr;
			lArr[0] = letter;
			lArr[1] = (letter != 7) ? letter + 1 : -1;
			writeln("    [" ~ to!string(lArr[0]) ~", " ~ 
to!string(lArr[1]) ~ "]");

			for(int i = 0; i < lArr.length; i++){
				
				Tile * tile = (board[number][symbol][i]).ptr;

				//program runs well until I reach this point, then it crashes
				writeln("\t", *tile);
				func(number,symbol,lArr[i], tile);
			}

			
		}
	}
}
```