I already reported this to support but I'm posting it again so other people can confirm if they have the same issue.
Try to add an image content block then select an image. You see the context menu when clicking on the image and a resize notch in 4 corners of the image. Now, save the template and exit from it. Then go back to the same template again and click on the same image and notice if you still see the context menu and the resize notch? In my 3 browsers - Chrome, FF, and Safari it does not show the menu and resize notch anymore.
Thanks,
Jackson