Drupal 7 Fields Not Showing Up
There are several issues that could be plaguing you related to various configurations. However as a starting point, let's start with the basics:


Clear all caches. This will clear most issues caused by upgrades.
Rebuild permissions. Sometimes new access permissions or changes to old ones occur during upgrades. Since the fields still exist, but are not seen in the content view, it's possible that a permissions error is in your way.

http://www.example.com/admin/reports/status/rebuild
Check your PHP logs. Sometimes issues can occur with PHP where upgrades adding new features break things in a subtle way. Running out of memory, or breaching the 'max_input_vars' threshold are common issues I've seen.