Hey there, @nickthebadgeman! Thanks for contacting us. I’m happy to help you.
Do you mind sharing more information about the issue?
What steps are you following to edit and importing the tags?
What exactly happen? Do you get an error message?
You mentioned you tried everything, do you mind sharing exactly what you already tried so we don’t end up asking you to do it again?
Where are you trying to import the tags and slugs from?
Furthermore, I’d like to understand your site properly. Please share with us the necessary information below for us to investigate the issue further:
System Status Report which you can find via WooCommerce > Status > Get system report > Copy for support.
Fatal error logs (if any) under WooCommerce > Status > Logs. Then you can use the selector to search for Fatal Errors.
You could copy and paste your reply here or paste it via https://gist.github.com/ and send the link here.
Looking forward to your reply.
Have a wonderful day!