When editing a page, all media goes to the top

This has been an issue for quite awhile now, but now I really need to solve it. When editing a page (not posts, just pages) any image I try to add goes to the very top of the page no matter where I insert them. I go to where I want the image, hit add media, pick the image I want, click to insert it . . . and the image shows up at the very top of the page instead of where I tried to insert it. I tested all of my plug-ins and that didn't make any difference at all, so it has to be something in the theme. (I forgot about this issue before renewing my license. Maybe that was a mistake.) This is the page I most recently ran into it on: https://explorationvacation.net/exploring-usa/minnesota-travel-guide/minnesota-state-park-travel-guide/ It seems to be just a PAGE issue, as I recently edited a very long old POST and didn't have any problem inserting images in their proper spot. Can you figure out what is going on and how to fix it?