Monodevelop 4.0.1 breakpoints won't work.

I've been using Monodevelop 4.0.1 for Unity 5 and i've noticed that when i'm trying to debug anything the breakpoints and the debugging just won't work properly.

For example, i set the breakpoint at some initializing, then i attach the script but then the breakpoint just disappear and appears at the end of the code.

Another example is that i set the breakpoint, debug normally for a couple of lines and when it hits a comment it just skips the entire code, and when i try to debug again, what happens is what i said for the first example.

Programming like this is HELL!! Has anybody got a solution for this?