I am checking in to see if we have some sort of ETA on a patch coming up for the ART tool that several of us are experiencing issues with. I am still having a read only issue where I cannot use the tool as it instantly errors with a message about read-only on the .ma file. Additionally the related threads have only hot fixes by the community which may or may not be impacting the overall experience using ART.
Issue seen for me in Maya 2014 Standard not Student.
Others have seen issues mostly with Maya 2013 Student.
This is now resolved!
Check the official thread created detailing known issues, frequently asked questions, and upcoming features as well as the latest code drops: