Recently after upgrading to Resharper 8.1, i am facing a very strange bug which causes visual studio to remove (or combine 2 consecutive lines) every time i hit the debug start button. I knew that this is caused by Resharper because i tried to disable it and the problem just disappeared. So i immediately reset all settings of Resharper with no luck!.
Example:
UpdateData1();
UpdateData2();
Becomes
UpdateData1();UpdateData2();