Hi,
I downloaded latest Moose and I dragged and dropped into the image a st file to file it in. Debugger popped up saying:

SubscriptOutOfBounds: 1

By copy pasting the content of the st file into a workspace and by executing the workspace's content it works.

here the build i used:
http://ci.moosetechnology.org/job/moose-latest-dev/923/artifact/moose/

Cheers,
Fabrizio