Whenever I use the 'who' command while another immortal is logged on (there are three of us at the moment), the indicated number of players will be accurate but I'll only be able to see my own name. I believe one of the other immortals said that he was only able to see my name as well, though he was also showing that 2 people were logged on. Anyone know how to fix this? We are still rather fledgling with regards to the server side of things.
For starts which codebase? I'm going to assume it's smaug since you posted on this forum but the exact version you installed would be useful.
Also, what modifications have you made? SmaugFUSS shouldn't have any such issue out of the box. Although, maybe it's not showing people who are "wizinvis" on the who list? I don't have much experience with smaug. If it's an actual bug, we'll need to see the code in question for the who function.