Greetings, Exiles,
We have determined that the crashes were caused by transferring characters with pets, mounts, and thralls. We are working with our server hosting partners to resolve the issue and restore service to all affected servers.
As a result, your thralls, pets, and mounts will temporarily disappear from your Followers menu. Rest assured, they are not lost forever and will reappear once we release the next game patch. We plan to patch the PC version very soon, followed by the Xbox and PlayStation versions shortly after.
Thank you for your continued patience and understanding while we work to resolve this situation. I will provide more information on the timeline as soon as I can.