Unity 5.5 debugging problem

I upgrade unity 5.4.0 to 5.5

Debugging 5.4.0 was fine. no problem.
But 5.5 occur some problem.

  1. Breakpoint do not work with coroutines of partial classes.
  2. Debug Watch window do not work with calculation of unity APIs. ex) vector3 + vector3

And sometimes debugger is very slow when add breakpoint.

This problem occur 5.5.0f3 and 5.5.0p1.
And Visial Studio 2015, Monodevelop both.

I’m not sure that anyone here will be able to help - you should probably report this as a bug to Unity.