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Bug report - Meta Box AIO 3.7.1: Builder silently drops new fields from compiled

Support › General › Bug report - Meta Box AIO 3.7.1: Builder silently drops new fields from compiled

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  • May 30, 2026 at 8:54 PM #50006
    Aidan van VuurenAidan van Vuuren
    Participant

    <p>Adding new fields to an existing field group via the Builder UI saves them correctly to the fields postmeta but the new fields don't appear in the recompiled meta_box postmeta, so they never render on the post edit screen.</p>
    <p>Reproduction Steps:</p>

    1. Existing field group with one or more sub-group fields.
    2. Add five new fields inside the sub-group: one post, one number, three more post (multi), one color.
    3. Click Update on the field group.
    4. Inspect post 13's postmeta: fields contains all 7 children; meta_box only contains the original 2.
    5. Adding a text field at the same nesting level compiles correctly — only the post/number/color types in this case are dropped.

    <p>Workaround: Manually replace the affected groups' fields array in meta_box postmeta with the array from fields postmeta.</p>
    <p>Environment:</p>

    • Meta Box AIO 3.7.1
    • WordPress (your version) + WooCommerce (your version)
    • PHP 8.2.31
    • Active extensions: full AIO bundle (meta-box-builder, conditional-logic, group, custom-post-type, etc.)
    May 31, 2026 at 3:31 PM #50008
    PeterPeter
    Moderator

    Hello Aidan,

    Thanks for reaching out.

    I'm not able to reproduce the issue on my demo site, please check this screenshot https://imgur.com/a/eZLeva4

    Here are steps I do on the site:
    - create a new field group and add a taxonomy field (for example)
    - save the field group
    - check the field group and taxonomy field displayed on the post editing page

    - add a group field
    - add a sub-group field
    - add a text sub-field
    - add a post sub-field
    - add a number sub-field
    - add 3 post sub-fields
    - add a color picker sub-field

    - save the field group and all sub-fields are displayed correctly on the post editing page

    can you please share a screen record of steps you take on your site? You can try to deactivate all plugins, leave only Meta Box AIO activated, switch to a WordPress theme and recheck this.

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