I've had the same bug. The problem seems to occur when opening up the guild roster after error404 leaves the guild.
Viewing post in Emberfate: Tempest of Elements comments
Hi! I promise I haven't forgotten about this bug report, but somehow, I still have not been able to replicate the error on my end or locate the issue in the code. I'll keep investigating this issue, but if anyone else runs into this problem, please let me know and any more details you can provide would be helpful too! Thank you, and I'm sorry for the inconveniences caused!