In which case the problem probably lies within the text that you are entering into the Body/description part. That leads to three more questions -
Are you copying and pasting from Word into that large text box?
(reason why I’m asking - It is possible that the version of Word expected is older than what you are pasting and contains formatting instructions that are not expected by the editor)
Are you using Underline in your text?
(reason for asking - I read somewhere that Underline is not a formatting instruction in the current version of HTML)
Are you trying to use those foreign emoji in the body of the text?
(reason for asking - it could be that if you are importing them as images and that the editor expects images to be on their own lines)
One thing you could try - Underneath that large text box there is a drop-down menu marked “Text Format”. By default this will be set to “Filtered HTML”. This is what allows you to enter the Rich Text formatting (Bold, etc.). If you choose “Plain Text” instead, it will strip all that formatting. However it is worth trying because if you can save it in that format, it will confirm that the problem is indeed in your Body text.
BTW and FWIW I use the Opera browser a Chromium based browser but that should have no bearing on your problem.