As a part of b1805 release of SF, it is possible to hide/show the Jobs Applied portlet in the candidate profile for internal or external candidates.
Reproducing the Issue
Go to Admin Center >> Manage Recruiting Settings
Under Applicant Profile Settings, you will find the options to hide the Jobs Applied portlet for internal and external candidates.
This is a new feature added in b1805 release.
If the 'Hide Jobs Applied Portlet for External Candidates' is enabled, then the portlet will not be visible for the external candidate profiles. If 'Hide Jobs Applied Portlet for Internal Candidates' is enabled, then the portlet will not be visible for the internal candidate profiles.
KBA , LOD-SF-RCM-ADM , Admin Center, RBP, Permissions and Settings , Problem