A couple problems.
Change your Count and Row counts from Double representation, to I32 or some other integer type. That is probably why you are getting stuck in a loop searching for zero. Round off errors in doubles can lead to inequalities between numbers that you might otherwise consider the same.
You have localitis. You have a race condition for Row count in the True case of the case structure. Do you want the Row count incremented by 1, or read to index the 2-D array first? As it is now, there is no control over which happens first. Eliminate all the local variables. Replace them with wires and start using shift registers to maintain the values between loop iterations.
Another problem is your while loop stops when your count is equal to the number of elements in the array. Your count starts out as zero. It appears that the count is incremented on each iteration of the loop. Eventually your count will equal the number of elements in the array and the loop will stop. But all other code in that iteration will still have to occur. If you have a 5 element array, your indices go from 0 to 4. But your count is now 5. The loop will stop when the iteration completes, but now you are trying to index out element 5 (which doesn't exist) and also element 6 (5 +1) which also doesn't exist. Actually, you'll have the problem in the previous iteration because element 5 (4+1) doesn't exist.
Another problem is the way you use insert into array. If you start out with an empty array, and try to insert into an array in any other row or column besides 0, you get nothing. Or if you have 4 rows and try to insert into row 5 or higher, nothing gets added. Insert into array is the wrong function to use probably 95% of the time. You should be using Build Array.
Why do you have a case structure that in the False case puts out a True, and in the True case puts out a False? That is a Rube Goldberg. It won't cause a problem, but it is just unnecessary code. Just wire the comparison out to the stop and put a NOT operator on it. If you change the loop condition to Continue if True, then you can eliminate the Not! as well. Also, instead of adding a 1 to a number, there is a +1 increment operator in the numeric palette. (A little less code means a little cleaner diagram.) Also, you don't need two separate Index Array functions. You can use one and resize it downwards. If you wire the Count into the upper one, the lower one (that you just added by expanding the function) will give you the next index after count.)
I don't have your global variable. (Where is that data coming from? Another VI?) If you can replace that global with an array constant with some typical data, it would give us something to work with.
