So I log in today, and I see this under the name of my pirates.
After I see Pirate Guild 0, I look at the guild page, and it was blank. The only button that was lit up on the options menu was Redeem Invitation, but it did nothing. I did notice others around that had this, and others that still had their normal guild name.
A little later, a message pops up saying I have joined the guild. ( explanation of the third image )