debugging with cdb and python dumper shows not accessible

Trying to debug an application using cdb with python dumper enabled. When I look at my local vars at a breakpoint, just about all show up as <not accessible>.

Turning the dumper off, does give me access to values, but alot of other noise that is not relevant.

I have attached the full debugger log for the session, running up to a breakpoint in my main.cpp