WP Query: Incorrect routing of pagination when place 2 different blocks in a same page

[x4fingers]

Description

Current pagination routing doesn't have a way to classify multiple post categories on the same page.

What happened:
An example, I'm on the a custom page which places 2 WP Query blocks for 2 different post categories. If I click on the second page number or the next button of the first category, I will go to the second page, it shows posts of both the first category and the second category.

What I expect:
I expect will go to the second page but it only shows the first category's posts (routing need to changed), or go to the selected Category page.

Step-by-step reproduction instructions

1. Create 2 different dummy categories and their dummy posts.
2. Create a new custom page with Block editor and add WP Query block for 2 categories.
3. Click on the second page number link or Next link.

Screenshots, screen recording, code snippet

No response

Environment info

• Wordpress 6.0.2

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

[ntsekouras]

👋 - Can you elaborate a bit more? I don't understand the issue you're experiencing.

I have inserted two Query Loop blocks that show only posts from a specific category, different for each one. When I click on the next it will show the next page for the Query Loop block I clicked and preserve the existing page for any other Query Loop blocks, which is the expected behavior.

[x4fingers]

@ntsekouras please take a look at my example page. If you click page 2 or next page of a random category you will understand what I'm describing.

[ntsekouras]

@ntsekouras please take a look at my example page. If you click page 2 or next page of a random category you will understand what I'm describing.

Oh.. I think I got your problem now and I believe it's related to #29693, which we should revive. By checking your provided link I saw that both Query Loop blocks share the same queryId(19 in your case). This id is what is used in pagination blocks to make multiple blocks paginate properly. So my guess is you created the first Query Loop block and copied/duplicated for the other which also copied the id. Is my guess right?

For now, all you have to do is go to the page/template you have these queries and update manually the queryId in code editor, of one of the blocks that have the issue:

Screen.Recording.2022-10-18.at.8.27.25.AM.mov

[x4fingers]

Thank you @ntsekouras. The problem is solved.