Faction change in NFP
 

Prior to patch I logged off in NFP bank, no problems whatsoever.

After patch, I log on and got slaughtered.

Was the faction change to NFP guards intentional or it might have been an oversight?

What is your race, class, and deity? Freeport factions were adjusted significantly to try to bring them more inline with the badguys-vs-goodguys thing FP has going on with the Militia and the Knights of Truth. For a long time, Freeport on Project 1999 did not have this flavor.