Open the workspace dbgcderr.vpw in attached tarball.
Attempt to debug the python project, press "F5" or Debug->Start
In the build window, will see a message:
[SE xxx]$ cd %rw
%rw: No such file or directory
SE should be substituting a directory in for the "%rw", but it is not substituting it there. Same issue occurs if using %rp instead.
If trying the repro with a clean config, the first time this error does not show up. Try it a 2nd or 3rd time, then you will see it.