hey Bert, I've received this error also under this scenario: created a new pro project housed in "ABC" directory / folder renamed "ABC" to something else..."123" created a new python notebook in the pro project >>> UNC Path ERROR The FIX: renamed "123" back to "ABC" and it worked. It appears that the updated container name doesn't get passed to pro and when creating the new notebook its trying to place it in a directory that no longer exists. hope this helps.
... View more