I am having a similar issue. I am getting the error that asks me to quit my city as it is not processing properly. I then have to rollback to a previous version of the city. However, this works for me but as soon as I play the city for a bit longer I get the exact same mesage and have to roll it back to the exact same point as previously. This keeps happening to the same city, "Cinder" in Reflection Atoll. It has rolled back to the same point 3 times in a row now. I posted a thread before I saw this. I will post my problems here too in the hopes they fix this ridiculous issue.
I am having the same issues with my city "lapland". I am getting the error that ask me to quit my city aswell because it issent processing properly. It keeps crashing even when i rollback to a previous version of the city
