+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Reenter the info to fix it. On top you will see a button to update family member information.

That being said, they are expecting to resolve all technical issues by end of Aug 1st (as per the email I have received from CIC technical support.)

Once you fix and reenter it hopefully you won't face the issue again.
 
Yes. Both Kat_jack and I have the same issue and no solution till now.