Visual Studio 2010 debugger skipping

Question

Occasionally during debugging the debugger skips forward randomly. Sometimes I Step into a function inside of another function and instead of going to the next line it skips

Answer 1

This can also happen when your Debug solution configuration is up to date, but you try to debug the program in Release configuration (if that is not also up-to-date)... or vice versa.

You can switch back and forth between running in Debug or Release configuration using the drop-down next to the green 'play' arrow at the top of the screen.