Also experienced the bug with Jace's -6, only copied my first spell after activating rather than all spells that turn. Pretty rough time when a PW's ultimate doesn't work as advertised.
(Screenshots explanation - I would've had lethal poison counters if infectious inquiry and experimental augury were both copied, but only the inquiry was copied since I cast it first. My opponent got to take another turn before they conceded.)
Also experienced the bug with Jace's -6, only copied my first spell after activating rather than all spells that turn. Pretty rough time when a PW's ultimate doesn't work as advertised.
(Screenshots explanation - I would've had lethal poison counters if infectious inquiry and experimental augury were both copied, but only the inquiry was copied since I cast it first. My opponent got to take another turn before they conceded.)