Lots of issues with Groups and Nested Groups

Hi,

Seem to having multiple issues with groups. Extensions and main plugin all latest versions.

• If parent clone button is clicked all nested groups expand (whether collapsible or not when tested)
• If sibling groups are collapsed, when clicking clone button, no fields are displayed on new clone until collapse toggle is clicked.
• Group titles simply not working. Tried the older method:
  'group_title'=>['field' => 'item_title']
  and the new
  'group_title'=>'{item_title}'

If I'm doing something wrong please let me know but tried multiple collapsible settings, disabling plugins and re-enabling (No errors) and getting no where.

$meta_boxes[] = [
                'title' => 'Menu Items',
                'post_types' => 'ttemenu',
                'fields' => [
                    [
                        'name' =>
                            'Menu item<br/><small style="padding-right: 15px; margin-top: 15px; display: block;">Add menu item and their required information.</small>',
                        'id' => 'menu_items',
                        'type' => 'group',
                        'clone' => true,
                        'collapsible' => true,
                        'group_title' => ['field' => 'item_name'],
                        'save_state' => true,
                        'add_button' => 'Add menu item',
                        'fields' => [
                            [
                                'name' => 'Item name',
                                'id' => 'item_name',
                                'type' => 'text',
                            ],
                            [
                                'name' => 'Item description',
                                'id' => 'item_desc',
                                'type' => 'textarea',
                            ],
                            [
                                'name' => 'Multi Pricing?',
                                'desc' => 'Whether item has multiple prices (eg sml and lrg)',
                                'id' => 'multi_price',
                                'type' => 'checkbox',
                            ],
                            [
                                'name' => 'Item price',
                                'desc' => '10.00, 15.00 etc',
                                'id' => 'item_price',
                                'type' => 'text',
                                'hidden' => ['multi_price', '!=', false],
                            ],
                            [
                                'name' => 'Multi-Pricing', // Optional
                                'id' => 'group_id',
                                'type' => 'group',
                                'clone' => 'true',
                                'collapsible' => true,
                                'default_state' => 'collapsed',
                                'group_title' =>
                                    '{multi_price_title} - &pound;{multi_item_price}',
                                'add_button' => 'Add price',
                                'fields' => [
                                    [
                                        'name' => 'Price Title',
                                        'desc' => 'Pint, pitcher etc',
                                        'id' => 'multi_price_title',
                                        'type' => 'text',
                                    ],
                                    [
                                        'name' => 'Item price',
                                        'desc' => '10.00, 15.00 etc',
                                        'id' => 'multi_item_price',
                                        'type' => 'text',
                                    ],
                                ],
                                'hidden' => ['multi_price', '!=', true], // hide if single pricing
                            ],
                            [
                                'name' => 'Item tags',
                                'desc' => 'Select food tags (vegan, vegetarian etc)',
                                'id' => 'item_tags',
                                'type' => 'taxonomy',
                                'taxonomy' => 'menu_tags',
                                'placeholder' => 'Select food tags',
                            ],
                        ],
                    ],
                ],
            ];