I recently had an interaction where it made a really weird comment about a function that didn't make sense, and when I asked it to explain what it meant, it said "let me have another look at the code to see what I meant", and made up something even more nonsensical.

It's clear why it happened as well; when I asked it to explain itself, it had no access to its state of mind when it made the original statement; it has no memory of its own beyond the text the middleware feeds it each time. It was essentially being asked to explain what someone who wrote what it wrote, might have been thinking.