Is there no way to know when they're going to spring this on us? I used a gem, hit a level up and then, not even halfway through my stamina, "Oh sorry we're doing maintenance"
WTF??? This isn't 2 AM this is 7:30 AM where I log on to do some missions before I go to work (and I can't be the ONLY one who does this)

Oh look, a bar just popped up AFTER Maintenance started saying they're doing a short maintenance. It was NOT there (for me at least) before it started