His TRV application has been stuck in the background checks stage (security check) since several months. For some reason, IRCC seems to be running more in-depth checks. I'm guessing it had to do with his long-residence in Saudi Arabia or maybe it is a case of mistaken/similar identity to someone else. Hopefully, the GCMS notes will help in some way.
Reporting the matter as a 'technical issue' will not help until the checks are completed.
@Mrmoody90:
Just asking out of curiosity: You have an Australian PR but you applied from Pakistan. No issues about that.
But in these over six months of TRV processing, you have not returned to Australia to manage your Australian business and/or for other reasons. Did you demonstrate your strong ties to Pakistan too in your TRV application?