Overview
A workflow imported from another user can be structurally correct but fail locally because its custom nodes or models are missing. The graph alone does not include every executable dependency.
Understanding the extension stack helps diagnose failures:
If a node type is missing, install the custom-node package.
If the node exists but its dropdown is empty, install the required model and refresh.
If startup reports missing libraries, restart after installation and allow dependency setup to complete.
If the extension documentation specifies a directory, place the asset exactly there.
This separation prevents repeated graph edits when the real problem is an incomplete environment.