A collaborative workspace app in Microsoft 365 designed to help teams co-create, stay organized, and work together in real time across apps and devices.
Since the category under which you submitted your question does not indicate whether this involves a personal or business account, could you please confirm whether you access Loop using a personal Microsoft account, typically managed at account.microsoft.com, or a work or school account provided by an organization, typically managed at myaccount.microsoft.com?
In the meantime, if you are using a business account, I suggest asking your SharePoint administrator to check the affected workspaces under SharePoint admin center > SharePoint Embedded. They can verify whether the workspace containers are active and whether your ownership and permissions are listed correctly. Please note that this section can only be used to review the container status and membership. It cannot display or recover the content within individual Loop pages.
For more details, please refer to: Manage containers in SharePoint admin center
Manage SharePoint Embedded containers for Copilot Notebooks, Copilot Pages, or Loop workspaces
If you are not using a business account, please let me know which type of Microsoft account you are using so that I can provide the appropriate guidance.
I look forward to hearing your update soon.