Imp-Possible to Play This Mode!

I'm guessing at the mechanics involved; judging by the stuttered animation when it hits it's not affecting all players universally since my character and others in my view are "stuck" while other characters are clearly moving normally.

For certain it's always Super Mix events with limited character availability but where the character classes allowed are fully unlocked and have Party variants available.

Quite awhile ago they had an "Agent Pea v Camo Soldier" event which limited characters to just the one on each side and we didn't have this issue, nor did we have it during "Rando's Revenge" or other Super Mixes where character selection is left open; but we did get it with "Battle of the Exploding Heroes" where Plants were limited to Citron, Corn and Rose and Zombies were limited to Imps, Pirates and Superbrainz; all of which feature various Legendary types and all of which have Party variants and during another limited character Super Mix where the selections available included Party variants which were unlocked for everyone.

While we don't know exactly what triggers it the Party variants are the one common thread and we know that it's not just server related because the impact is system wide, hampers your ability to exit and close the game but disappears completely once the game does close or when the game itself disconnects you due to inactivity caused by whatever is happening.