Using the debugger branch (not gdbmi) and carefully specifying the gdb directory, I get the following with pretty printing. It looks very much like the output of the gdbmi plugin (except without so many '+'s .

Looks ok to me. What are we supposed to be looking for?
Now I'll do the same with gdbmi.
Edit: Here's the gdbmi output (also the debugger branch)

I don't see a problem. But I don't know what I'm supposed to see either.