My apologies; I backup my navdata in a git repository, and it appears when I checked the files for the presence of this approach, my repository was in a middle of a bisect which I had forgotten to reset, pointing to an older cycle which did contain the approach.
Sorry for the confusion.
Regards,
Tim
Edit: FWIW, the approach was present in the data until cycle 2606 inclusive, and removed starting with cycle 2607. The coordinates for the RF center waypoints are not missing so much as they were removed along with the approach with cycle 2607.
The approach was experimental, and the testing period has apparently ended on June 11, 2026: Aeroporto Reggio Calabria: termina la fase sperimentale della procedura RNP (AR) RWY 33 • AeroportiCalabria.com
The website does not know specifically why the approach was not picked up at the end of the testing phase, but goes on to speculate that it may have been due to lack of interest from airlines.