Found out what the problem was if anyone could use the info...
In my case, a little knowledge was a dangerous thing.
I've never worked on a switch with IALX so... when I set the Local Node Number in Milan and Hong Kong to be 7 and 8 respectively (which are the next numbers in the IP trunk/DCS linked systems), little did I know that the IALX relies on that Local Node Number to communicate with the S8300. It also didn't clue me in that there was an issue with it because when I compared it to the only other S8300 we have it was set to Node Number 5. That system has an Octel, not an IALX.
Learn something new every day.