Hi @anon45632648 and sorry to hear you are running into this issue.
In this case, I would recommend you to reach out to our support team providing the URL of the Project and your CSV file, so they can try to reproduce it and assist you further to resolve this issue!
You can reach out to them following these steps . When you do, feel free to reference this thread so you don’t have to re-explain everything.
Please let me know if there is anything else I can help you with!