First I'm in design tab. Everything looks good.

Then when I run the process the program has a weird UI bug and stay freeze on the design tab.

When I try to switch to the result BOOM everything disappear.

Then after I move my cursor around some buttons reappear but not the result i want to see.

Everything was going fine before this happened for the first time.
I think I didn't do anything wrong accept I was using the breakpoint for the first time too just before this happened.
I tried to run other processes but all give the same result as this.
Running on Windows 7 64-bit
After I restart PC, the problem still exist.
So how can I fix this?