I am having a hard time finding out who else has run into this issue, but when I try to run the migration for the data, I am getting this error:
[2020-08-21 18:59:11][ERROR]: Not mapped id key 23 found for eav_entity_attribute.attribute_set_id
I have never seen this before. I know what it's looking for, but it doesn't make sense. There was never an attribute id of 23. And I even went ahead on the older Magento and added in a test Product Attribute Set which then listed the ID as 23. So you would think now that it's created, it would find it, but I'm still getting the same error.