Well who’da thought…
Just tried for a 3rd time and reproduced the issue exactly.
It is a bit random. Sometimes it works on tap#1, sometimes it takes 2 taps and sometimes 3 taps.
It doesn’t seem to take more than 3 though.
goes offline while restarting phone and eating own words
EDIT: it still does it after a restart. In fact, it took 5 taps to enable a lab setting after disabling it.
Very strange.