CMS still locked after removing collection links

I am trying to change collection source, i have removed all connections and now its locked as “none”.

What else can I do to unlock ?


Here is my public share link: https://orchid-homes.webflow.io/portfolio

Read only link:
https://preview.webflow.com/preview/orchid-homes?utm_medium=preview_link&utm_source=designer&utm_content=orchid-homes&preview=f74802e484b3daaec80e6ee690e6abd7&pageId=609fe936c598f35da99f9f7b&workflow=preview

i ended up just duplicating the section and adding a new CMS block and redid it … still not sure why it was locked to “none” …