title: Provisioning Profiles was invalid but Certificate and App ID are valid, why is that
body: <p>My provisioning profile suddenly became invalid. 
  I logged in developer.apple.com couples of days ago and everything was fine. Today I logged in again and was surprised to find that both of my development profile and distribution profile were invalid. The certificates and App ID are valid, I did not revoke any of them and they are not expired at all. So why my profile became invalid?</p>
  
  <p>I know I can re-generate profile but because I do enterprises distribution not app store distribution. I am worried that regenerating profile may affect current users. Also, I really need to figure out the reason to prevent it from happening again.</p>
  
  <p>Any idea? Thanks! </p>
  
  <p>Updated: First of all, it is not because the profiles were expired, their expiration date is at the end of 2015.</p>
  
  <p>Second,  I did re-generate development profile at morning but I just checked it and found the profile was invalid again! Something weird must happen and I have submitted a support ticket to apple and wait for their response. </p>