I figured I should create a new topic for this new problem...
When I try to resize the top image (logo) on my page, it automatically shrinks down to nothingness and disappears. For the second image down (ebook cover graphic), I can shrink it down but not make it larger. Then I can shrink or grow the other images without any problems.
Here's a quick video showing you what I mean, with the red rings showing when I left click: https://youtu.be/wrn_Cf0_DW81 .
Any idea why this is happening and how to fix it?