Ur EF so much that your brain no longer has the energy to maintain other functions (things related to skills) which then cause autistic burnout aka you literally forget how to do skills you had learnt. This can go from talking, walking, reading to very niche things.

Fourth of all: The communication issues with ASD like not understanding context clues and tones can cause a lot of issues in a classroom aswell. The inability to understand context clues causes you to be unable to predict what will be asked in tests, you will be there with the wrong scripts to use