She definitely comprehends though.
Sorry, when I said "understood," I didn't mean "comprehended" - I meant "could act on that comprehension." If you asked her specific questions, she could give correct answers, but when she was in the situation, she didn't recognize it as a situation to which those answers applied.
Particularly with "lost" - apparently "I'm under a clothing rack at Walmart where no one can see me, and I'm scared that I don't know where my mom is" did not count as lost - because she knew exactly where she was! She was never a habitual runner, so we hadn't done a lot of "this is what counts as lost" talking, so maybe the lack was on my end, not hers.
