I am migrating some of my notebooks from the soon to be deprecated AI-Platform to the new Vertex platform in GCP. In Vertex I am using the "Managed Notebooks", and all seemed to be working fine, but then suddenly I got this strange quota exceed error, when I am still far below my limits (I am currently at 4-5% of limit for the given APIs). See the error below:

*Restarting notebook prototyping-notebook: Quota of "::internal: operation "projects/1096432937575/locations/us-central1/operations/start-92b393a0-6c2e-4e11-be32-0172418d33c11643717891501967646" completed with error: %!w(status.Status=&{{{} [] [] } 13 INTERNAL: operation name: operation-1643717891545-5d6f3e5095a3c-9aa08cdd-4bd8b9cd error code: QUOTA_EXCEEDED error message: Quota " exceeded limit: 40 in region us-central1.

I know it is still in preview, but anyone faced the same error or have any experience in how to fix this? Is there some combination of configurations that seems to be more stable than others?