I seem to remember a specific word, or a two-word phrase being used for
Encountering or coming across a question that you were sure you could answer, such as to explain something being right or wrong, that when told to answer the question, you can't come up with an answer. This resulting in having to question a logic that while previously believed sound suddenly has a hole in it.
I don't mean the phrase moral dilemma, it is a similar phrase or word that is on the tip of my tongue and I just can't think of it, so instead of spending the next 30 minutes thinking about it I am going to post this here to see if someone else can think of it and go get some work done.
I saw a question while posting this, that made me think of a different way to describe it, which would be when you have an argument that you are sure have an answer to, or your own answer at least, such as when yes or no to gun control laws, but when asked to explain your reasoning logically, you start to question what you were previously so sure of due to it having a logic hole poked in it, and '"this is just true cause it is good/right" but no explanation' is not a valid reason, making you stop and think about it in more detail to try and find a reason your first answer was correct.