Crashing inside ultimatum instantly fails it

While sanctum being pure cancer of a game design, the only okayish way to ascension is ultimatum.
But client crash that occurs regularly bricks entire run.
Even tho ultimatum keys cost nothing, the time wasted is annoying (and possibly some valuable rewards)

most of the time freeze for couple second and dead when it gets back to normal.
it is getting soooo annoying. no idea what they are updating, no bugs fix. it just gets worst and worst.