Ugh that’s what I thought. Good to know for next time I guess.
one question - what would have happened if I instead switched to standby early. There was positive PY and J space in the flight I wanted to get on, I had a confirmed PY seat and waitlisted J eupgrade on the later flight. Would I likely get a PY seat or would they be able to both put me on standby for PE and add me to the eupgrade waitlist (with potentially different priority)?