I found that module doesn't work well with widgets provided by Inline Entity Form module ( https://www.drupal.org/project/inline_entity_form → ).
In hook limited_field_widgets_field_widget_multivalue_form_alter, $value['add_more']['#access'] is set to FALSE which is refreshing all the items during Ajax callback AND eventually results in loss of field value.
Closed: cannot reproduce
3.0
Code
Just tested on latest branch using https://www.drupal.org/project/inline_entity_form → and not able to reproduce.