Logged out prematurely
I logged in with my username and correct password. The progress spinner appeared for a few seconds. Then I was shown the login screen again, with the message "For your safety we logged you out after being idle for 10 minutes. Please login again." I'm using Chrome Version 52.0.2743.116 m (64-bit) on Windows 10 PC. Other times I get logged out with the same message while actively using the website, clicking on pages. This also happens in Firefox 48.0.
The website is nearly unusable!