tested in Ubuntu V16 - LTS
I had launcher running > demo app permission granted > created public ID >
went back to this forum (in my browser) for about six minutes > Demo app window crashed, and said “Launcher must be kept running” but launcher was still running (so maybe the demo app timed out?). When I clicked on the launcher window, it opened and the demo app window closed immediately.
I attempted a second time, and it took about 2 minutes to publish the template webpage. Given the number of nodes running today, it’s probably some serious congestion, but hopefully my steps above helps resolve a bug or two!