Unable to add/remove entities in the translated version of the node

Works as intended, I guess, see web/modules/contrib/inline_entity_form/src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php

    // When in translation, the widget only supports editing (translating)
    // already added entities, so there's no need to show the rest.
    if ($element['#translating']) {
      if (empty($entities)) {
        // There are no entities available for translation, hide the widget.
        $element['#access'] = FALSE;
      }
      return $element;
    }

Firstly, thanks for this fantastic module. I'm having a related (same?) issue. Once you create a translation, it's not possible to add entities in the original node because translations won't get updated:

1. Create a new node (with an entity reference field using IFE).
2. Add a few references to your field and save the node.
3. Create a translation of the node in a different language. All the references in the field will be there.
4. Add a new reference in the original node and save it.
5. The translated version of the node will not have the new entry, and it will not be possible to add it directly either.

So @ofrommel your'e right, by design the module won't allow you to alter the contents of the field and I think the approach is correct. However, it should at least be kept in sync when adding/removing entries in the original entity?

So far, the only way to work around this problem is to delete the translation and create it again from scratch, which is not always something easy to do.

I have the same issue. What is the reason behind not being able to add/remove as the field is translatable so we can reference other entities?

I am facing the same issue, the value is not syncing to the translated content after updating the original content.
Created a patch to fix this issue.