HOOKMARK and OBSIDIAN

I am curious what you mean by a main vault. I have 8 vaults in Obisidian none of which I would call the main vault. Just curious.

It’s the first vault created. I wasn’t sure how to refer to it. Since then I have created several more - and deleted a couple.

Have you checked if the Advanced URI plugin has been installed?

I don’t know if this helps anything. I tried “Allow URI callbacks” in my other vaults and Hookmark works with no problem. One of my vaults has “Advanced URI” with “Allow URI callbacks” and that is working ok.
If I can test something with my vaults I would be happy to if it would help.

Thank you, @lwjkjr .

If you are not using Advanced URI, then it should be OK. An advanced URI looks like this:
obsidian://adv-uri?vault=test&filepath=test.md

For more info, please visit Using Hookmark 3.4.3 with Obsidian – Hookmark.