VS problem debugging iOS app in simulator

Visual Studio 2015 Community update 3
Elements 10.0.0.2325

The first time I debug the app, everything works and stops at breakpoints.
When I finished the debugging session and launched a second session, the debugger no longer stops at breakpoints.
I have to close VS and start it again, with the added problem that launching the debugger takes a lot of time because it starts downloading a lot of library files.

Debugging in these conditions is unfeasible.

PS Yes, I have tested with Water and the breakpoint lines have a message at the end that says “BreakPoint not resolved”. And neither does it stop.

Thanks, logged as bugs://81011

bugs://81011 got closed with status fixed.