Like: https://litextension.com/squarespace-migration/squarespace-to-squarespace-migration.html?utm_source=reddit&utm_medium=seeding&utm_content=hoang&utm_campaign=turbo_boost-click2webWe don't use Squarespace, but we've had the same issue switching CMS platforms. Rebuilding from scratch is usually what we do AND THE we still have to "hack" some areas like blog posts posting dates.It's ALWAYS a pain in the ass.
------------Gone: My Discogs collection for The Roots:http://www.discogs.com/user/tomhayes-roots/collection