Does the FDMEE user you are logged with have access to Planning app?
Did you check the FDMEE server logs?
If it is not down to provisioning If you look in <MIDDLEWARE_HOME>\user_projects\domains\EPMSystem\servers\ErpIntegrator0\logs\aif-WebApp.log
You will see the point where it tries to connect to planning
[ErpIntegrator0] [NOTIFICATION]  [oracle.apps.erpi.model] [tid: 14] [userId: <anonymous>] [ecid: 00idwWUd6maFw0zkJm00nz02NjE3zzYx10000J^00008h,0:1] [APP: AIF#126.96.36.199] [SRC_CLASS: com.hyperion.aif.util.RegistryUtil] [SRC_METHOD: returnPlanningProduct] Planning URL :http://planningserver:8300/HyperionPlanning/servlet/HspAppManagerServlet
There will be errors generated after that point if it can't connect
A bug has been reported by Oracle for this issue where they asked to apply the Patch.
The bug details along with patch number for this are given below:
Bug 22491851 - EPMA APPS NOT SHOWING IN TARGET APPS REGISTRATION
Patch 22506581: MERGE PATCH FOR BUG 22491851