Below is a simplified minimal code, removing any node will work fine in obsidian.
It works fine in mermaid.live and vscode mermaid plugin.
flowchart TD
Start --> Text2SQL
subgraph Text2SQL
subgraph MetaData
subgraph MetaConv
MetaConv_Note
end
end
subgraph Prompt
end
end
Prompt --> versionManager
subgraph versionManager
end