Browser, if a website issue: Firefox Version 153.0.4 (64-bit)
URLs (aka web addresses) of any relevant observations or pages: To find one, find a user with an Unknown, open that observation, and scroll to the bottom. I can’t give an actual URL as it is likely that the observations will have IDs before you get to look at them.
Step 1: These are from the bottom section of an observation, where you find “More from [username]”. I’ve noticed it a few times recently, but I don’t know if it always happens or has always happened. Observations which have no IDs say “Inactive Taxon”.
I’m on Firefox 155.0 following the upload problems (seems to be resolved for now) and this is not replicating, tried it with two users who both had unknowns from today. I’ll try to find some with historic unknowns and maybe more than one.