Omniraph Python - missing nodes after restarting Isaac Sim

Omniverse Isaac Sim
1

I was trying out this (Part Three: Create Your Own Nodes — Omniverse Extensions latest documentation) tutorial worked fine. When I restart the Isaac Sim application, the node in has gone missing.
Terminal says, “2023-12-22 04:57:19 [649,330ms] [Warning] [omni.graph.core.plugin] Could not find node type interface for ‘omni.new.extension_test04.NegateDouble’”.
I have checked the extension path and it is listed as a location where Isaac look for extensions.
Pls help. Thank you.

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@ruk.shan i am just another user, is the extension already set to autoload (indicated by #5)?

https://docs.omniverse.nvidia.com/extensions/latest/ext_omnigraph/tutorials/deforming_text_create_node.html#review-your-extension-short

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yes. That was the issue. Thank you so much.

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