IDEA 14 doesn't compile/build Play Framework project

I have a medium sized Play Framework project. When I select 'Make Project', IDEA almost immideately tells me that 'compilation completed' or 'All files are up-to-date'.
In order to spot any error in my code I have to Run the project. When I do that and then open my project in web browser, I see that Activator/Sbt compilation kicks offs  and all errors are finally reported.

This is very annoying. Any way I can force IDEA to actually build the project and report errors?