diff -u b/formatters/accordion/accordion.js b/formatters/accordion/accordion.js
--- b/formatters/accordion/accordion.js
+++ b/formatters/accordion/accordion.js
@@ -72,7 +72,7 @@
 
           // Check if Accordion Items need to be hidden when the "state:visible"
           // event is fired.
-          $(document).once('fieldgroup_accordion_state_visible').bind('state:visible', function(e) {
+          $(once('fieldgroup_accordion_state_visible', 'body')).bind('state:visible', function(e) {
             if ($(e.target).hasClass('field-group-child-field')) {
               let $group = $(e.target).closest('.field-group-accordion-item');
               if ($group.length !== 0) {
@@ -87,4 +87,4 @@
     }
   };
 
-})(jQuery);
+})(Drupal, jQuery, once);
diff -u b/formatters/details/details.js b/formatters/details/details.js
--- b/formatters/details/details.js
+++ b/formatters/details/details.js
@@ -29,7 +29,7 @@
 
       // Check if Details Field Groups need to be hidden when the
       // "state:visible" event is fired.
-      $(document).once('fieldgroup_details_state_visible').bind('state:visible', function(e) {
+      $(once('fieldgroup_details_state_visible', 'body')).bind('state:visible', function(e) {
         if ($(e.target).hasClass('field-group-child-field')) {
           let $group = $(e.target).closest('.field-group-details');
           if ($group.length !== 0) {
@@ -40,4 +40,4 @@
     }
   };
 
-})(jQuery);
+})(jQuery, once);
diff -u b/formatters/fieldset/fieldset.js b/formatters/fieldset/fieldset.js
--- b/formatters/fieldset/fieldset.js
+++ b/formatters/fieldset/fieldset.js
@@ -30,7 +30,7 @@
 
       // Check if Fieldset Field Groups need to be hidden when the
       // "state:visible" event is fired.
-      $(document).once('fieldgroup_fieldset_state_visible').bind('state:visible', function(e) {
+      $(once('fieldgroup_fieldset_state_visible', 'body')).bind('state:visible', function(e) {
         if ($(e.target).hasClass('field-group-child-field')) {
           let $group = $(e.target).closest('.field-group-fieldset');
           if ($group.length !== 0) {
@@ -41,4 +41,4 @@
     }
   };
 
-})(jQuery);
+})(jQuery, once);
diff -u b/formatters/html_element/html-element.js b/formatters/html_element/html-element.js
--- b/formatters/html_element/html-element.js
+++ b/formatters/html_element/html-element.js
@@ -37,7 +37,7 @@
       });
       // Check if HTML element Field Groups need to be hidden when the
       // "state:visible" event is fired.
-      $(document).once('fieldgroup_html_element_state_visible').bind('state:visible', function(e) {
+      $(once('fieldgroup_html_element_state_visible', 'body')).bind('state:visible', function(e) {
         if ($(e.target).hasClass('field-group-child-field')) {
           let $group = $(e.target).closest('.field-group-details');
           if ($group.length !== 0) {
@@ -85,4 +85,4 @@
     }
   };
 
-})(jQuery);
+})(jQuery, once);
diff -u b/formatters/tabs/tabs.js b/formatters/tabs/tabs.js
--- b/formatters/tabs/tabs.js
+++ b/formatters/tabs/tabs.js
@@ -49,7 +49,7 @@
 
         // Check if Tabs need to be hidden when the "state:visible" event is
         // fired.
-        $(document).once('fieldgroup_tabs_state_visible').bind('state:visible', function(e) {
+        $(once('fieldgroup_tabs_state_visible', 'body')).bind('state:visible', function(e) {
           if ($(e.target).hasClass('field-group-child-field')) {
             let $group = $(e.target).closest('.field-group-tab');
             let $tab;
@@ -69,4 +69,4 @@
     }
   };
 
-})(jQuery, Modernizr);
+})(jQuery, Modernizr, once);
only in patch2:
unchanged:
--- a/field_group.libraries.yml
+++ b/field_group.libraries.yml
@@ -46,6 +46,7 @@ formatter.details:
     formatters/details/details.js: {}
   dependencies:
     - core/jquery
+    - core/once
 
 formatter.tabs:
   js: