New LTXV nodes are not installed automatically when using Install missing nodes.

While I can install ComfyUI-LTXVideo from the Custom Nodes Manager, when it is not installed loading flow with nodes from ComfyUI-LTXVideo, and trying to fix missing nodes ComfyUI-LTXVideo does not appear in the list provided by Install Missing Nodes.

Reproduce the missing-node flow with a workflow containing ComfyUI-LTXVideo while the custom node is absent, then trace how Install Missing Nodes discovers and matches available custom nodes. Confirm whether the manager's registry data includes the new LTXV nodes and compare that with the Custom Nodes Manager listing. Done means ComfyUI-LTXVideo appears in the missing-node installation list and can be installed from there.

Written by the indexing model from the issue text.