I've been trying to replicate but unfortunately I can't, it just keeps letting me mint! On my third try I thought perhaps I had found an issue because I hit the button and nothing happened but when I scrolled back up I saw the collection name field was red and I had to choose my collection again... Someone else just minted 20 artworks in a row so it seems it isn't a universal problem which makes it tricky. I've tried something by removing you as an approved artist and adding you back, if we can't solve this I will pull the dev in and see if he has some ideas....

sorry for the novel 🤣