Hi,
Updates do fail sometimes thus creating an unstable environment. These failures can occur due to many reasons!
For eg. check this thread: http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/230998.aspx
http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/286034.aspx
Similarly, go through few more threads in this forum. They might help you solve your issue.
Regards,
Gautam