Error loading navigation:The Managed Navigation term set is improperly attached to the site SharePoint

Recently while doing some research on Managed Navigation term set, I got the issue. Error loading navigation: The Managed Navigation term set is improperly attached to the site. (Correlation ID: 3616289d-3081-2000-22dc-0dec1f38ff88).

What I was trying is:

I went to the Navigation from the Site Settings page. Then I changed to “Managed Navigation: The navigation items will be represented using a Managed Metadata term set.” in the Global Navigation.

And I changed to “Managed Navigation: The navigation items will be represented using a Managed Metadata term set.” in the Current Navigation.

Then I created some Term Set in the “Managed Navigation: Term Set” section.

After that, I save the page and do something.

Now after this I wanted to go back to my previous where my left navigation will come with Structural Navigation. So I followed the below steps.

I select the “Structural Navigation: Display the navigation items below the current site” in Global navigation.

And I select “Structural Navigation: Display only the navigation items below the current site” in the current Navigation.

Now when I save the settings and go back to the home page I got the below error:

Error loading navigation: The Managed Navigation term set is improperly attached to the site. (Correlation ID: 3616289d-3081-2000-22dc-0dec1f38ff88).

Error loading navigation the managed navigation term set is improperly

To fix the error, First I tried to change the selection of radio button on the Navigation page but did not help me out.

When I refreshed the page 2 times, closed the browser and open again, the error message gone.

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This tutorial we learned how to fix error Error loading navigation: The Managed Navigation term set is improperly attached to the site.