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Yeah, but I mean, is this something that has changed in the game? The timer stops if I dont look at the page?

Usually I can do Guitar lesson for an hour and let it run in the background and now it ticks for about 5 seconds and then stops unless I am looking at it.

I then would see if I can leave the mission on screen while I sleep and if my mouse is idle for too long, the timer also stops.

I refreshed the game, logged out and in again and it's still like that. Is this the new normal or so I have a problem?