I logged into WorldAnvil after a while and everything seemed fine. I was adjusting some interface and account settings, and I then noticed that the sidebar had disappeared whilst I was doing these adjustments. I didn't see an option to toggle the sidebar, I don't think there is one? It was there I logged in today, but it is now not there. It's as though the element had been deleted from the HTML code. I can't seem to get it back and I am not sure how to reproduce the bug. (note, the sidebar is missing on several devices. Tried logging in on my phone (iOS) with Safari and the side menu is gone.
Unable to reproduce as I cannot get the sidebar back.
Just to add, the changes I made to my account and interface weren't many. I added my name to my author profile, changed my username, and played around with the different themes and editor layouts.
Scratch this!!! I did not realise that the sidebar menu was dependent on there having a world selected. I deleted all my worlds, which caused the side menu to disappear as it had nothing to link to. Apologies!