GMs in PMs
Actually I think that's perfectly normal - any private message has a list of recipients. Adding a new person (anybody) to that list has always started a new thread as far as I'm aware.
At least it always has whenever I've done it.
Note that if you are included in the thread as an NPC, the system assumes that you will want to reply with that character, so trying to reply as a different one (ie: the main GM character) counts as adding a new person to the list of recipients.
This is actually a feature, rather than a bug. It stops you accidentally replying for a character using your GM name, and revealing that the character really belongs to you.
This message was last edited by the user at 09:50, Sun 24 Jan 2016.