This thread is resolved. Here is a description of the problem and solution.
Problem:
The client is experiencing an issue where attempting to add and save authors on language variants results in an error message: 'Could not update the meta value of footnotes in the database', and the post won't save. Removing the author allows the post to save.
Solution:
We have not encountered this specific issue before and could not find similar cases in our support forum. To assist further, we need more information about the 'footnotes' feature. Specifically, we need to know if it is part of a specific plugin or theme and which plugin or module adds this field. Additionally, detailed steps to reproduce the issue would be helpful.
Meanwhile, you might consider checking out these links for potential workarounds:
If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we recommend opening a new support ticket.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, please visit our support forum at WPML Support Forum.
This is the technical support forum for WPML - the multilingual WordPress plugin.
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This topic is split from https://wpml.org/forums/topic/automatic-translations-not-processing/