Curse of Knowledge is a phenomenon that occurs when a person has knowledge of a particular subject or situation that makes it difficult for them to explain it to someone who does not have that same knowledge. It can lead to frustration and confusion as the person with the knowledge is unable to adequately explain
From Wikipedia
The curse of knowledge, also called the curse of expertise or expert's curse, is a cognitive bias that occurs when a person who has specialized knowledge assumes that others share in that knowledge.