Those parks were added to the POTA database after the last release of HAMRS.
IMHO it would be better for HAMRS to clear the location fields if an unrecognized 5-number park is entered rather than truncating the park number to a 4-number park.
Actually, it would be better that when internet is detected that while starting up it gets the worldwide file from pota.app, and saves it to the local file system.
There are parks being changed and added almost daily. There is no way that HamRS, the way it is now, can keep its internal database up to date.