sism 4 get to work venues not showing up

I was wondering if anyone else is having the same issue as me. when I try to follow my sim to work as a doctor the venue dosent show up for any of the get to work jobs. I also had a issue with the some of the houses no showing either. when i go to the map there are no houses there its just blank. i ended up having to go back into every lot and placing a house for the sims in my world to live in. I also have the camping expansion pack and the venues dont pop up their either. Im getting very frustrated because i purchased these and they worked for a little bit then the venues disapeared. If any one can help me get the venues back for get to work and the camping one i would be very happy. 🙂m