Version 1.9.7 on Windows 10.
I did an Edit/Insert Image Linked to file with this image:
I split the edit window in two (horizontal split)
I noticed that in the lower window, in addition to the image, there was a rectangle with a tiny square in its lower right corner. I’d never seen that before.
Curious, I clicked on the tiny square, and resized the rectangle.
In an instant Scrivener was gone. Crashed.
Hope that helps!