The error might be because of delay in workspace files being accessible . 

The /Workspace mount point appears quickly, but the FUSE daemon may still be initializing auth, metadata, and connections to the workspace storage account.

FUSE = Filesystem in Userspace: a Linux mechanism where a user‑space daemon implements a filesystem that the kernel exposes as a normal mount point.On Databricks, paths like /Workspace/... (workspace files) and /Volumes/... (Unity Catalog volumes) are exposed via a FUSE layer .