Location gets regenerated after death near the boss checkpoint

It doesnt really matter either it's a map, campaign location or whatever - sometimes if you die, you get a longer ressurection with a loading screen, after that you revive at the latest point near the boss, while the rest of the map is totally new and undiscovered.

I got the same bug on the map, died at boss, had this bug. And this bug lead to make this undiscovered map to be fully empty. I had 3/4 of rituals, there were no rituals at all, no adds, no boxes, nothing, just area.

Never lucky