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I'm trying to get some posts from another blog but it won't work if I want them from a specific category.

switch_to_blog(1);
$replays = get_posts([
    'post_type' => 'post',
    'numberposts' => 10,
    'category' => 1
]);
// Whatever ...
restore_current_blog();

It works as intended if I don't need a specific category though.

Is it the normal behavior ? Do I need to write a custom SQL query ?

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    how are you getting the ID of the specific category? Note that a category might not have the same ID on the other site, even if it shares the same slug/name, because they aren't the same category, they're just categories on separate sites that happen to share a name
    – Tom J Nowell ♦
    Commented Nov 13 at 13:16
  • It's the ID of the specific category from the blog I want to get the posts from. I'm aware that they are not the same. Also when I try to get the said category it works perfectly : switch_to_blog(1); get_category(1);
    – Ben
    Commented Nov 13 at 13:55
  • 1
    I tested this on a fresh install of WP 6.7 and had no issue. So no, not normal behavior, and a custom SQL query shouldn't be needed. There's likely something interfering (from theme or plugin). You may be able to use a tool like Query Monitor to review the queries and see if it's being altered.
    – Caleb
    Commented Nov 13 at 15:10
  • Sometimes websites in the same multisite network might have different IDs for categories so you might want to try get categories by their names or slugs first
    – Artemy Kaydash
    Commented Nov 13 at 16:47

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