Custom Taxonomies

how to make a migration for “custom taxonomy”
“comix-language” and other.
From “MainWP Child” to mainWP
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when editing post on mainWP – I expose a taxonomy CATEGORY, then everything is fine
but when edit taxonomy “COMIX-LANGUAGE” – on “MainWP Child” site nothing changes!
I’m using “Custom Post Type UI” on two sites and SLUG and NAME the same