After OTA update, my contact list is empty...

After the update I have noticed several changes, 90% have been welcomed & appreciated. Next thing I know I go to make a call from my contact list and there are zero contacts...the really weird part is, if I am texting and filling out the to-whom line, it will automatically populate contacts as if my contact list never vanished...it may have been coincidental that this took place the day of the update, but that's where u guys come in...let me know if u have had the same issue!
Lennydrvs, out.