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Overview of the issue
When using the Essential Addons for Elementor‘s Filterable Gallery widget with WPML, the following fields; eael_fg_control, eael_fg_gallery_item_name, eael_fg_gallery_control_name, eael_fg_gallery_item_video_link, fg_item_cat fields cannot be translated.
Workaround
Add the following XML in WPML > Setting > Custom XML Configuration:
<wpml-config>
<elementor-widgets>
<widget name=»eael-filterable-gallery»>
<fields-in-item items_of=»eael_fg_gallery_items»>
<field type=»Filterable Gallery: eael_fg_gallery_item_name» editor_type=»LINE»>eael_fg_gallery_item_name</field>
<field type=»Filterable Gallery: eael_fg_gallery_control_name» editor_type=»LINE»>eael_fg_gallery_control_name</field>
<field type=»Filterable Gallery: Item Link» editor_type=»LINK»>eael_fg_gallery_item_video_link</field>
<field type=»Filterable Gallery: Item Category» editor_type=»LINE»>fg_item_cat</field>
</fields-in-item>
<fields-in-item items_of=»eael_fg_controls»>
<field type=»Filterable Gallery: Category» editor_type=»LINE»>eael_fg_control</field>
</fields-in-item>
</widget>
</elementor-widgets>
</wpml-config>
Then apply a small edit to the post for these new fields to load in the translation editor.