It is possible that you somehow have both the fremantle v1.3 -pr and the cssu -pr files. This will cause conflicts.

In fApMan
- Press one of Install, Revove or Upgrade (doesn't matter which to start with)
- Press "S"
- - Select "All" (i.e. installed, not-installed as well as upgradable)
- Press "C".
- - select "All packages (ADVANCED)" (at bottom of list. It shows libraries and other non-user packages).
- Type "mp-f"

You will see two items:
- mp-fremantle-community-pr
- mp-fremantle-generic-pr

On selecting each, two buttons will be visible at the bottom of the screen: Install and No operation.
Which package has which button highlighted?