I had a couple of problems with B4A last year (2012) which could not be resolved, including the one in this thread. I eventually just gave up and went to work on some other (non-B4A) projects.
When the last update came out, I got an email about paying for another two years and I did so, hoping that the problems had been fixed.
First, I still cannot connect to my Toshiba Thrive using either Wireless or Bluetooth, which was the subject of another thread, but I am able to via USB, so I guess I'll ignore that for now.
As for debug not working -- the problem remains. Most of the time B4A stops at a breakpoint line, but does not highlight it, and most of the time, it does not show either Global or Local variables in those debug windows.
Some times it stops but doesn't highlight the breakpoint line, but it *does* show variables in debug.
Once it stopped and *did* highlight the breakpoint line (same line as before that it did NOT work on) and kept working as I pressed F8, but after about 8 lines or so, it quit highlighting the lines.
So I take it that this issue has never been resolved?