Adobe App Manager is really is a piece of shit, I cannot tolerate it anymore. It's slow, tough and rigid. The first time it starts, it shows just a blank page. The second time, there is something completely broken without any sense. Seems like some CSS files a missing or whatever. An endless spinner hangs for the third time I re-started it. After a number of times the manager has been restarted, I could finally see a list of installed app. Congrats!