Are you sure about that?
If you're an avid reader, you've likely seen the word judgment spelled two different ways across various sources…blog.dictionary.com
Note: “Today, judgement is an accepted spelling in British English, but if you stick to judgment, you won’t be judged in the UK or the US.”
However, I do thank you for pointing out the one instance of inconsistency. By the way, spellcheck won’t catch either spelling, at least in MS Word.