I get a glitch when I try using custom AC for a character. I attempted to set the custom AC to 13 + DEX and it resulted in the AC being 1300. The DEX of the character is 10 (+0). I set it to all the other values which had something other than a +0, and they all worked. The stats the character has are 8, 10, 14, 14, 14, 18.