I'm not having this issue on PC. This probably is not so easy if you are using your phone.
I click the "Insert Image" button. It then shows a dotted box. I drag my photo into the box and there it is with no issues.
From
@Bonsai Nut :
"Using the "insert image" button, or dragging and dropping an image into your post from your desktop, will maintain the EXIF metadata tag and the image will be oriented correctly)."