I'm, using TB version 102.7.1 (64-bit) on Windows10. An hour ago I received an email in TB which was displayed perfectly normally. Having read it I moved on to other emails, but then wanted to go back and re-read the first one. In moving out of that first one then returning to it, either it is doing something automatically which I do not want, or probably more likely, I unintentionally, and unknowingly, clicked on something. Either way, that first email was no longer being displayed in my Inbox. After a while of searching I found it sitting all on its own in an obviously automatically newly-created folder labelled 2023, in Archives. I have been using TB for many years, but I have never needed to archive anything and never have intentionally done so. I don't even know how to do this. So although I'm sure that archiving is a very good feature and probably worth doing, I really don't want my emails disappearing from my Inbox without me intentionally shifting them. So how can I prevent this happening again (it was quite an important email)? Did I accidently click on something. If not, is there some setting or other that I need to learn about, please?