I was doing the challenges this week and I restarted a few times, trying to practice some sessions. About to hit my streak, and then all of a sudden it’s shutting down in 60 seconds. Are you guys serious? I’m actively playing on a single player mode.
This really needs to be fixed.
My best guess is that it’s to stop hero exp farming. The mode came out at the same time as hero leveling so it’s conceivable they actually thought people would care about it back then
How do you farm it by restarting? Don’t you lose progress? I’m just trying to practice a room.
oh my bad, there is also a mechanic where if you take too long to finish a course you get kicked, I thought you meant that
I think that’s what happened, but it counted the time before I restarted. If you spend enough time restarting, it kicks you 
servers will automatically close if they are open for too long
its some sort of failsafe. this happens for custom games too
hero mastery isnt really “singleplayer” in that sense that it is offline. like practice range, it creates a server to host the lobby you play in
