Did you ever experience the issue, that you had a solution that only rebuilt those projects that have been changed? All other unmodified projects were not built. However, after reopening the Visual Studio and working on the solution it sometimes happen, that although no projects have been changed, Visual Studio rebuilds every project after the command „Build Solution“ (key „F6“). No matter if you restart Visual Studio or choose „Clean Solution“ and build it again. It’s very annoying and takes a lot of precious time.
However, after searching for a solution to fix this issue I came to this workaround:
After success choose „Build Solution“ again: now a rebuild should be suppressed.