In the old System Administrator tool when you clicked on the Workflows tab there was a Triggers button on the right that you could press and see the Triggers currently deployed to the App Engine. In the new Application Admin tool I can't seem to find any trace of the Triggers button or any way to see the triggers installed.
SBM is opened Traced request/response - when the server identifies a client with IPv6 it writes parameter ParamsInUserCache=fe70%3a%3ac48e%3a7e1c%3a8342%3a3810%25114 and fails afterwards, when this parameter contains IPv4 symbols only, login is successful.