On Page Reload ckEditor display loading spinner

[zgavrilovic-itk]

Describe the bug
On first load everything works well. On page reload ckEditor present spinner.

To Reproduce
Steps to reproduce the behavior:

1. Load ckEditor first time.
2. Reload page

Expected behavior
On page reload to load ckEditor

Screenshots
Added in description

please complete the following information:
node: v18.20.2

    "@_sh/strapi-plugin-ckeditor": "3.0.0",
    "@strapi/plugin-color-picker": "^4.25.11",
    "@strapi/plugin-i18n": "4.25.11",
    "@strapi/plugin-users-permissions": "^4.25.11",
    "@strapi/strapi": "4.25.11",

const CKEConfig = () => ({
  presets: {
    custom: {
      styles: ` `,
      /* Custom field option */
      field: {
        key: 'custom',
        value: 'custom',
        metadatas: {
          intlLabel: {
            id: 'ckeditor5.preset.custom.label',
            defaultMessage: 'Custom version',
          },
        },
      },
      /* CKEditor configuration */
      editorConfig: {
        plugins: [
          SH_CKE.Bold,
          SH_CKE.Italic,
          SH_CKE.Underline,
          SH_CKE.Essentials,
          SH_CKE.Heading,
          SH_CKE.Image,
          SH_CKE.Alignment,
          SH_CKE.ImageCaption,
          SH_CKE.ImageStyle,
          SH_CKE.ImageToolbar,
          SH_CKE.ImageUpload,
          SH_CKE.Indent,
          SH_CKE.Link,
          SH_CKE.List,
          SH_CKE.Paragraph,
          SH_CKE.PasteFromOffice,
          SH_CKE.Table,
          SH_CKE.TableToolbar,
          SH_CKE.TableColumnResize,
          SH_CKE.TableCaption,
          SH_CKE.StrapiMediaLib,
          SH_CKE.StrapiUploadAdapter,
          SH_CKE.FontBackgroundColor,
          SH_CKE.FontColor,
          SH_CKE.FontFamily,
          SH_CKE.FontSize,
          SH_CKE.SpecialCharacters,
          SH_CKE.SpecialCharactersArrows,
          SH_CKE.SpecialCharactersCurrency,
          SH_CKE.SpecialCharactersLatin,
          SH_CKE.SpecialCharactersMathematical,
          SH_CKE.SpecialCharactersText,
        ],
        language: {
        },
        fontColor: {
          columns: 5,
          colors: [
            {
              color: '#1B1B1B',
              label: 'Grey 1',
            },
            {
              color: '#2C2C2C',
              label: 'Grey 2',
            },
            {
              color: '#C5C5C5',
              label: 'Grey 3',
            },
            {
              color: '#DADADA',
              label: 'Grey 4',
            },
            {
              color: '#DADADA',
              label: 'Grey 5',
            },
            {
              color: '#FFF',
              label: 'White',
            },
            {
              color: '#DB0505',
              label: 'MIFCOM Red',
            },
          ],
        },
        fontBackgroundColor: {
          columns: 5,
          colors: [
            {
              color: '#1B1B1B',
              label: 'Grey 1',
            },
            {
              color: '#2C2C2C',
              label: 'Grey 2',
            },
            {
              color: '#C5C5C5',
              label: 'Grey 3',
            },
            {
              color: '#DADADA',
              label: 'Grey 4',
            },
            {
              color: '#DADADA',
              label: 'Grey 5',
            },
            {
              color: '#FFF',
              label: 'White',
            },
            {
              color: '#DB0505',
              label: 'MIFCOM Red',
            },
          ],
        },
        fontSize: {
          options: [12, 14, 16, 18, 20, 24, 28, 32, 36, 40, 48, 64],
          supportAllValues: false,
        },
        fontFamily: {
          options: [
            'default',
            'titillium-web-v15-latin-200',
            'titillium-web-v15-latin-300',
            'titillium-web-v15-latin-600',
            'titillium-web-v15-latin-700',
            'Arial, Helvetica Neue, Helvetica, Source Sans Pro, sans-serif',
            'Roboto, Roboto Black, Roboto Medium, Roboto Light, sans-serif',
          ],
          supportAllValues: true,
        },
        toolbar: [
          'heading',
          '|',
          'bold',
          'italic',
          'underline',
          'fontSize',
          '|',
          'fontColor',
          'fontBackgroundColor',
          '|',
          'specialCharacters',
          '|',
          'alignment:left',
          'alignment:center',
          'alignment:right',
          'fontFamily',
          'removeFormat',
          '|',
          'bulletedList',
          'todoList',
          'numberedList',
          '|',
          'outdent',
          'indent',
          'horizontalLine',
          '|',
          'StrapiMediaLib',
          'insertTable',
          'blockQuote',
          'mediaEmbed',
          'link',
          'highlight',
          '|',
          'htmlEmbed',
          'sourceEditing',
          'code',
          'codeBlock',
          '|',
          'subscript',
          'superscript',
          'strikethrough',
          'specialCharacters',
          '|',
          'fullScreen',
          'undo',
          'redo',
        ],
        heading: {
          options: [
            {
              model: 'paragraph',
              title: 'Paragraph',
              class: 'ck-heading_paragraph',
            },
            {
              model: 'heading1',
              view: 'h1',
              title: 'Heading 1',
              class: 'ck-heading_heading1',
            },
            {
              model: 'heading2',
              view: 'h2',
              title: 'Heading 2',
              class: 'ck-heading_heading2',
            },
            {
              model: 'heading3',
              view: 'h3',
              title: 'Heading 3',
              class: 'ck-heading_heading3',
            },
            {
              model: 'heading4',
              view: 'h4',
              title: 'Heading 4',
              class: 'ck-heading_heading4',
            },
            {
              model: 'heading5',
              view: 'h5',
              title: 'Heading 5',
              class: 'ck-heading_heading5',
            },
          ],
        },
        image: {
          resizeUnit: '%',
          resizeOptions: [
            {
              name: 'resizeImage:original',
              value: null,
              icon: 'original',
            },
            {
              name: 'resizeImage:25',
              value: '25',
              icon: 'small',
            },
            {
              name: 'resizeImage:50',
              value: '50',
              icon: 'medium',
            },
            {
              name: 'resizeImage:75',
              value: '75',
              icon: 'large',
            },
          ],
          toolbar: [
            'toggleImageCaption',
            'imageTextAlternative',
            'imageStyle:inline',
            'imageStyle:block',
            'imageStyle:side',
            'linkImage',
            'resizeImage:25',
            'resizeImage:50',
            'resizeImage:75',
            'resizeImage:original',
          ],
        },
        table: {
          contentToolbar: ['tableColumn', 'tableRow', 'mergeTableCells', '|', 'toggleTableCaption'],
        },
      },
    },
  },
  theme: {
  },
});

[zgavrilovic-itk]

After investigation,
Language object product this issue, since it is empty in my example.
Diff file: