This problem was posted six years ago. Support shows the bug as fixed, but I still see it today.
I have a ticket which is created by an external system emailing Freshdesk. The subject appears but the body is always blank (Its not an error on the email).
The ticket contents display in edit mode, but are hidden elsewhere.
For several months I was able to copy the text in edit mode, delete the body text, and paste it back with no formatting to make it display. That workaround no longer works. Even if I paste the text into another interface and remove all formatting I can't get it to display in Freshdesk.