The database is up to date 100%, as I personally verified all of the information (freqs, talkgroups, and individual sites) prior to submission. Depending on the type of scanner being used, it could be an LSM receive issue. Lovescanner had this issue with his BCD325P2 in the Elizabeth area, despite having Fort Lee and Main Simulcast sites within 5 miles of his residence. He ended up purchasing an SDS 100, and his coverage improved 1000% better on the PSE&G P25 TRS. The Main Simulcast site(s) use CQPSK modulation, whereas the other sites use C4FM modulation, which in turn affects how the older scanners decode the control channel and pass the voice on the scanner.
As a side note, the Main Simulcast covers an area that runs along the NJ Turnpike, from the Elizabeth area (Exit 13-A), all the way down into Moorestown (Exit 4), so it could be the scanner being used is not up to par with decoding the CQPSK style of P25 communications.