Unable to schedule events in WER
Well, after closing and reopening WER a few times over the course of a couple of hours, on the third iteration the problem resolved itself and apparent functionality was restored.
Then, the following morning, at my event, the problem resurfaced.
At this point, I am guessing that whatever fix was implemented to prevent WER from quietly disconnecting from the server has also damaged the handshake process so that if the user is not lucky enough to get a timely response at the moment of log in, functionality will disappear and the program has to be closed and reopened again and again until you win the functionality lottery.