I know we did have an issue where we could not perform the automated credential test against any system that had a System Reserved partition (or in fact any partition without a drive letter)
This was addressed in BE 15 FP2
It was documented in
https://www.veritas.com/docs/000023042
which included a workaround for those customers that cannot yet upgrade
Note: at this current time looks like we may have an issue with our documentation publishing system as the above link will not work - I will be reporting this and in due course that above link should start working again (or I will revisit this thread and provide an update)