Visual tab empty and not editable in product translation fields – yes this has happened to me and many others.
Here is how I managed to solve it really quickly and get product translation fields back to editable.
- Install and activate Enable jQuery Migrate Helper plugin
After installing the plugin for me the fields appeared instantly back normal and editable.
After installing the plugin you will get a message in your WordPress admin dashboard saying:
jQuery Migrate Helper
Right now, you are using a plugin to support some old code in this website’s jQuery JavaScript library. That code is deprecated, meaning it is basically obsolete and is losing the support of your themes and plugins and WordPress itself.
This plugin, called Enable jQuery Migrate Helper, is not a fix. It is a temporary solution to give your plugin and theme authors time to update.
If you get warnings, please check for updated versions of the plugin or theme that generated the warning. There will very likely be one you can install. When you have updated your plugins and themes, and there are no more warnings, please deactivate Enable jQuery Migrate Helper.
This is what it is – a temporary solution and you need to follow up with WordPress and your theme and plugins. When they will have updates then keep on trying to disable this jQuery Migrate helper plugin to see if it is still needed or a fix has been released that permanently solves your issue.
More on the WPML translation page Visual tab not working topic:
https://wpml.org/errata/visual-tab-in-classic-translation-editor-is-not-showing-contents-after-update-to-wordpress-5-6/
https://wpml.org/de/forums/topic/woocommerce-multilingual-editor-shows-nothing-in-visual-mode/