When using wordimport, once a file has been selected, and "Upload this file" button is clicked. You can replicate this issue by clicking intensively on any other HTML element on the page, as long as it is not the editor.
This causes the handling to insert the contents, at the focus point at the time, which might not be the editor, which produces the issue.
When using wordimport, once a file has been selected, and "Upload this file" button is clicked. You can replicate this issue by clicking intensively on any other HTML element on the page, as long as it is not the editor.
This causes the handling to insert the contents, at the focus point at the time, which might not be the editor, which produces the issue.