On the above link you will see ham repeater VE6RPT with a modulation type of P25 and a NAC of FC2. In Sentinel in the 08-11-2014 DB, it comes up as modulation NFM and tone "Search".
Just checked the HP1 Sentinel, and it appears incorrectly in there as well.
Other P25 conventional channels appear to import properly into the HPDB - in the subcategory "Tac Channels" here www.radioreference.com/apps/db/?aid=3839 you will see two freqs with NAC 100 which appear correctly in Sentinel.
I wonder if the database import is choking on the NAC (which starts with a hexadecimal letter instead of a number)?