Are you posting from your computer or phone? I’ve heard complaints on various websites that when posting photos from your phone, even though they are corrected on your phone, they revert when posted.
If posting from camera-to-computer, you should be able to rotate the image on your software where the photos are stored, or you can use a program such as Paint (which is usually installed on all Windows-based computers) to rotate the photo prior to uploading to the blog.
If this isn’t of help to you, you might try contacting Martin. https://woodworkingweb.com/msojka
“Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” Benjamin Franklin