Thank you for contacting our technical support.
I will convert this into a ticket and will ask you to provide me with the CSV so I can try importing it on my end.
This is Ethan from HyperCommerce. I believe that you have been able to resolve this by now.
If you still require further help or custom solutions such as Advanced SQL Queries, Custom Reports, API Solutions or Integrations, please feel free to reach me at firstname.lastname@example.org