it's not normal... AFAIK, it's not even about your IP and stuff... It could possibly be a glitch for everytime it tries to display the images on the captcha.. it happened to be and I know how fraustrating it can be.
It's mostly the restrictions which come with Tor browser such as fingerprinting protection, no permanent cookies, and the shared IP addresses of the exit nodes.
I hope you get over your challenges...it ain't over yet.
I'm standing strong. Thanks for the interest.
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When using Tails, there are a lot of stuff that can go wrong, and your machine might stop booting into it. That's regardless of the quality of the USB stick, it is simply common in Tails. So, never store anything important in the persistent storage, or back it up. Be sure that you'll have re-burn the image multiple times in the stick.