Hey @mcre, thanks for reaching out!
Did this start after a stretch of exporting lots of images in one day, or did it begin out of the blue?
That human-verification (CAPTCHA) check is a security measure on exports. It appears once you pass a daily export limit, and it’s there to prevent misuse and automated activity. So this is expected behavior rather than a bug.
There isn’t a setting to turn it off. Once it’s showing, it can appear on later exports too. It typically eases off after a break from exporting.
If it feels like it’s happening in error, you can please submit a request through our Support hub, so that our Customer Support team can take a closer look.
Let me know how it goes!