Thanks Lee and John....Difficult to identify exactly what is happening.. I take my pics with my relatively new Samsung 8 Android cell and load into DropBox as a camera upload...Then I do a normal response or thread in SMC and load these in as attachments to my post...When published, the rotation ocurrs.
As an interesting BTW, I find now when I click on the opened (enlarged) pics I posted, they will correct and go back to true vertical.
Thanks for your help...I suppose we all have bigger issues to pursue....Thanks