Especially on console (PS4) when I'm not even playing with people lol – although my character this time is an "online" character. I'm just playing a single player game, by myself, "private room" or whatever they call it, and I STILL get thrown off and it resets all my progress in the current map I was in (i.e. map progress is erased and all enemies respawn). ...and some of these maps are HUGE so that could erase a good hour or two of work.The server disconnect issues are still pretty annoying.
It's moreso that some areas are so large, and the map is randomly generated each time, that when it resets I simply don't know where to go anymore and find I have to backtrack and take WAY more time to get to the next area than I should have to.It’s annoying if you haven’t grabbed the waypoint yet for sure.
I’d hesitate to say it’s lost progress though unless you’re losing XP and items.