I just got the Thayan Book of the Dead and it did not auto-equip. It does say it's BOE and if I go to refine to look at the upgrade, it tells me it will bind, so I guess they fixed whatever the issue was. I hope they fixed it for you specifically. For the record, I did have the main artifact slot filled at the time of…
Guild renaming is free, yes, but the name being taken is not the issue. The issue is that no matter what you type in for a name (e.g. MyCoolGuild, The Guild, or eLiTeHaX0rZ) you will end up with the guild name in all lowercase (e.g. mycoolguild, the guild, and elitehax0rz).
Also having an issue where you try to enter with the current party on something like Cloak Tower and it says your party's in queue or active in the dungeon, yet when you look for the "RETURN TO INSTANCE" (or w/e it says) button, it doesn't exist and none of your party are in queue.