Me not even remembering that Personalization isn't possible in 1.2 should reinforce my limited experience with it. 
I've been able to reproduce the issue in my sandbox. I'm uninstalling all the plugins and restarting the MDAS services to see if this alleviates the issue or not. (BTW, I am running 1.3 SP1 on the server I think, I've not tried SP2 just yet since 1.4 is looming)