Sorry for the late post, have been very busy with Pocket Guild lately! :-)
Uploaded a new bug fix patch to the beta testers, aimed to fix the legendary freeze bug & arena tournament empty bug. This time it should work for everyone hopefully.
I'm also having good progress with the mastery feature patch, which is going to be the next thing i upload to the beta testers, if no bugs are found.
I sketched a simple sorting mechanic as well, which would serve as a placeholder until i figure out how i could show the members in a more spreadsheet-ed way, designed for smartphones.