Team can't edit company-wide libraries

I'm also facing the same issue. I created a library in XD and shared with another team member. We're both part of the enterprise adobe account. I gave my team member edit access to the library but they cannont edit the source file but I still can. I am the owner of the original cloud file used to create the library. 

Hi Ruben,

Thank you for writing to us. As long as the source account is active the assets will be accessible. See Collaborate and share CC Libraries with your team in this document.

Also here: Collaborate on folders and libraries from the Creative Cloud account

If an account is deactivated the behavior for Enterprise accounts is as follows. You won't have the same options to access assets for Creative Cloud for Teams as this uses Adobe ID which is owned by the end-user and cannot be accessed by the admin.

Manage storage in Adobe Creative Cloud for enterprise deployments

also, let us know how did you share the libraries. However, the above article will explain how to proceed. Please let us know if this helps.

Regards,

Neelam