tselarian

I had the same issue with Hiravias. I added him to party but he did not show up in the character, item, etc windows. I left town and was down to a party of 5 (from 6). When I returned, he was standing on the bridge in Caed Nua waiting for me to tell him it was time to go. After I did this, he joined my party like a good little NPC (there were two on the screen at once though until I changed maps and returned).