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This thread is resolved. Here is a description of the problem and solution.

Problem:
The client reported an issue where ACF posts were showing errors when switching languages on their multilingual site.
Solution:
We asked the client to check if they had followed the WPML documentation for setting up ACF in a multilingual environment. We provided a link to the relevant documentation: https://wpml.org/documentation/related-projects/translate-sites-built-with-acf/. We also requested access credentials to the site to further investigate and assist.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, we recommend opening a new support ticket. We highly suggest checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. For further assistance, please visit our support forum at https://wpml.org/forums/forum/english-support/.

This is the technical support forum for WPML - the multilingual WordPress plugin.

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This topic contains 1 reply, has 0 voices.

Last updated by Carlos Rojas 1 month, 3 weeks ago.

Assisted by: Carlos Rojas.

Author Posts
November 3, 2025 at 10:01 am #17540192

arturasJ-2

Hi,
we solved issue, but ACF posts showing error on language switch.
hidden link > hidden link
Can You help us to solve this technical issue?

November 3, 2025 at 10:04 am #17540198

Carlos Rojas
WPML Supporter since 03/2017

Languages: English (English ) Spanish (Español )

Timezone: Europe/Madrid (GMT+01:00)

Hi there,
This is the new ticket where we will continue working on solving the ACF issue.

1.- Please share the access credentials to the site in your next message, which I have set private.

2.- Tell if you have followed our documentation on ACF: https://wpml.org/documentation/related-projects/translate-sites-built-with-acf/ that describes how to set up the configuration so you can translate and see the ACF in the secondary languages?

Looking forward to your message.