Errors not shown when building two times

Hello,

There is a (not so important) annoying problem using unity 5.6.1f1.

If you build a game and there is error (build errors, not compile errors), the first time the errors will be shown + another error saying " cannot build because of errors below".

But if you build a second time (after trying to resolve them for exemple) and if there is still build errors, this time the errors will not be shown. Only The message saying it cannot build. The only way I found to show the errors is to reopen the project.