Playing solo, if I die during Act II or III, I lose all progress (0/6000).
If I make it back in time and partake in the finale, it doesn’t matter because you can’t interact with anything (with or without talking to the stage manager before going back onto the stage)
If you don’t then, well, that SHOULD be obvious.
Despite being there and have actively participated through out the event, and not have claimed the rewards yet, safe to say it’s bugged considering i’ve now repeated this 3 times to confirm the bug is there.