I know and I went through all these before.the_lion said:In exceptional circumstances, some applicants may experience delays in obtaining PCs within the 60-calendar-day timeframe allocated to submit a complete e-APR. In such situations, applicants should submit a letter of explanation as part of their application and include proof of having requested a PC (e.g., a copy of the receipt obtained when they requested the PC from the prescribed authority). The officer's discretion may be required in assessing whether PCs that do not fall within these time limits are valid and reliable for the purpose of evaluating admissibility.
Reference :
http://www.cic.gc.ca/english/resources/tools/perm/express/intake-complete.asp
An example of an "Exception Circumstance" as CIC quoted is a war in Syria etc....which is really not the case with us.
I don't know if FBI system upgrade delay would be accepted as an "exceptional circumstance" by CIC..