Miken,
Even DNet has come on the forum and admitted that the settings for controlling the way the contest picks between contests is confusing. They apologized. In the meantime, to prevent the client from switching to OGR ever, you need change OGR to read OGR=0 in the contest priority setting in the client. This tells the client to NOT to OGR, no matter what. By default, the client cycles through the cycles, one after another. This caught ALOT of people by surprise.
And as others have said before, us old-timers owe you all an apology. We've lived through this before, knew what was coming, knew pretty much how it was going to come down, and didn't do a good job of passing that information on ...
But, the upside is, now that it has happened to you, you'll definitely remember in the future ...
JHutch