This thread is resolved. Here is a description of the problem and solution.
Problem:
The client reported an issue with ACF Pro and WPML where select fields were not being validated and saved. This problem was noted with ACF Pro versions 6.3.2 and above, and WPML version 4.6.9 and 4.6.11.
Solution:
The issue has been resolved by the ACF developers in the new version 6.3.6 of ACF Pro. If you're experiencing similar issues, we recommend updating to the latest version of ACF Pro. You can check the developers' section for ACF Pro updates at ACF Pro Developers.
If this solution does not apply to your case, or if it seems outdated, please open a new support ticket. We also highly recommend 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, you can contact us through our support forum at WPML Support Forum.
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