In subjects where I am a tutor, am not yet a senior tutor, and have had no highly engaging sessions, I see a weird lock icon by the "Host ten highly engaging sessions" text, along with a help icon with tooltip that says "Registration is currently closed. Please check back later." See first attachment. I see this in Statistics, Reading and Writing, Chemistry, and Enrichment, subjects I'm either partially or fully certified in and in which I've held no highly engaging sessions. I'd expect to see something like the second attachment, with the hourglass icon, just showing that 0 have been completed, and without this "Registration is currently closed" help icon and tooltip. I don't know if there are any contexts in which the help icon and tooltip make sense, but they don't seem to make any sense here. I don't know in what context the lock icon would make sense either.