Having a weird glitch right now:

I started a quest and the requested items were the apostrophe/feli combo, but when I went to the shop search, the top bar showed the priggle/constellation as the request. So I bought those and completed that quest via the top bar, which did work. But when I went to start a new quest, it said I could only be on one quest at a time, and showed the apostrophe/feli again. The top bar still showed the priggle/consetllation, but I finished buying the original items and that quest appeared to complete too (not from the top bar complete button, but from the one on the quest page). But the priggle/constellation top bar is still there even now, and when I try to start a new quest I still get the one quest at a time error. I've tried pressing complete a few times and it always seems to work, but never makes the quest bar go away. Also, I completed two quests as normal today before this issue happened.

Edit: just checked my inventory and saw that the apostrophe/feli items are still there, but the priggle/constellation ones aren't. Also I have no idea how much of the other stuff in there is legit but I think I double or triple collected on prizes for this (which are all different)

Edit two: the top bar finally went away after the timer expired and I clicked "give up"

Edit three: jk it's back. That was at least the first time it appeared to go away though - "complete" left it there even on the completion page

Taking a look at this 👀

I have a next-day update: Rumi's holding a grudge :( Even though I did click both "complete" and "give up" an amount of times yesterday, none of them freed me from the quest. Clicking "try again" on this page does nothing, it just reloads exactly the same. That Rumi quest bar is finally gone for real though, and this issue is only affecting her - all my other quests today went fine, quest bar and all. Even after finishing them though Rumi's stuck on this page.

Edit a few days later: she's still stuck like that. Other quests work fine, but I haven't been able to do Rumi since first posting this

Update, she finally forgave me today and I can do her quests as normal. So I'm still not sure what this glitch was about, but it seems resolved now!