From the Final Report, page 98 (my bolding):
It should however be noted that an error was made in the analysis of the “FLAG FPV ON PFD CAPT (F/O)” message. This had been explained by the combination of two conditions: that the TRK-FPA mode had been selected by the crew, and that the FPV was unavailable. In fact, the first of these conditions is not taken into consideration when sending the message to the CMC. The fact that the status of the FDR parameter, which indicates the transition from HDG-VS mode to TRK-FPA mode, did not change during the flight confirms that the crew did not at any time select TRK-FPA mode.