I'm not sure why you're having this issue, but the OP's problem was fixed back in 2013.
Maybe you got some corruption or something when you installed CoT? First thing I would do is log out of everything and repair game - Open Origin, right-click the SimCity icon and choose "Repair Game".
Set both Origin.exe and SimCity.exe to "Run As Administrator". Check to be sure both programs are still in your exception lists for your anti-virus and firewall. If you have BitDefender or MSI's sound program Nahimic 2, disable or uninstall them.
If these steps don't work, start another thread with info on what exactly is happening in your case. OP said it started after a disaster, you say it's happening in every one of your cities, so I assume you don't have a disaster. Is it every building with extensions, or one particular one? Good luck!
