Post is empty because I couldn’t delete what I’d erroneously entered.
Below your post you should see some symbols.
Click on the dots to expose some more.
Click on the trash can to delete your post. For most users, it will be replaced by a message that you have deleted the content, and the post will be removed in 24 hours unless flagged. At your trust level, it might actually happen faster than that.
Thank you Dave - it was most embarrassing, posting a non-message that did nothing but distract people.