I'm playing the deck you mentioned - to give you/wotc a better idea of what it looks like from this end - when i time out the stack auto-resolves with my last targets repeated, then it looks as if its going to my combat - i get the "choose attackers" prompt with "all attackers" and "none attackers" in the bottom right, but neither button does anything and neither does clicking creatures. After a few seconds the buttons get replaced with "pass to attackers" as if it's my opponent's combat, and once i click it it goes to my opponent's second main phase, effectively skipping through my combat, second main, cleanup, and my opponent's upkeep, first main, and combat
I'm playing the deck you mentioned - to give you/wotc a better idea of what it looks like from this end - when i time out the stack auto-resolves with my last targets repeated, then it looks as if its going to my combat - i get the "choose attackers" prompt with "all attackers" and "none attackers" in the bottom right, but neither button does anything and neither does clicking creatures. After a few seconds the buttons get replaced with "pass to attackers" as if it's my opponent's combat, and once i click it it goes to my opponent's second main phase, effectively skipping through my combat, second main, cleanup, and my opponent's upkeep, first main, and combat