Do anyone also experiencing this problem when you can not set the breakpoint on specific line?
For example here is the screenshot of my debugged source code and at the left you can see the black dots at the beginning of the lines which represent the debugger's allowed to breakpoint lines. Clearly they are messed up allowing breakpoints on the commented lines and not allowing on others valid ones. The debug process seems still works ok if you are lucky and your needed line is 'allowed'.
I can not reproduce this bug on small demo examples, they all seems show all legitimate lines as marked with dots correctly

By the way, if you are still not using debuggers, tell your boss to lower your salary as you are not working efficiently spending 10x more time on any problem in the code :evil: Even semi-broken debugger which sometimes happen in my case is better than debugging ancient way without it