Well I am using aircrack-ng and it works fine with normal wordlists, but then when I try to use a wordlist with only numbers, aircrack will not function properly. I have updated it to the latest version.

Cowpatty seems to use is just fine.

The wordlist consists of the numbers '0000 - 9999', '0000 - 99999', '0 - 99999'
The file "numbers.txt" is 75.9MB, and yes they are all in one line each. No spaces, or any special characters.

Any help would be appreciated