If I use the CKEditor plugin in an HTML page based on a Bootstrap template, it works great, however if I insert the editor on a Bootstrap Modal like this
<
This worked for me with bootstrap 4.4 and ckeditor 4.14. All you need to do is to initialize the ckeditor in your modal's shown.bs.modal event.
bootstrap 4.4
ckeditor 4.14
shown.bs.modal
$('#yourModal') .on('shown.bs.modal', (e) => { CKEDITOR.replace('editor') });
worked like a charm.