The ISSUE label is for provable kata issues. Please use the QUESTION label when asking for help. See https://docs.codewars.com/training/troubleshooting#post-discourse.

Works in visual studio when I pass in emptyArray int[][] emptyArray = new int[][] { };

That's not how an empty matrix is represented in this kata. From the description:

NOTE 2: The 0x0 (empty matrix) is represented as en empty array inside an array [[]].

Not a kata issue.