Image that should not be seen is visible.

I am attaching a snapshot to show what is being displayed

The image with the lighthouse and the smaller green image is the problem.
The little green image should not be seen.

I start with a QML object I call the Card_frame. It contains nothing but
the "width, height, scale, and visible" attributes. I use this object to provide a standard
size for all images (hence the name frame).

The image on the right is the results of placing the "green image" inside
of the Card_frame. I works correctly.

The "green image" is a series of three imbedded rectangles
( green background, colored rectangle with radius that produces the dark circle,
and a third rectangle to produce the "dot")

The object that contains the error is a
Card_frame in which are imbedded two other Card_frames.
Each of the Card_frames have an image imbedded in it.
One is the green image. There other is a photo image.

The Card_frame that shows the image has the visible attribute set to true
The Card_frame that shows the green image has the visible attribute set to false.

Yet the green image is still displayed.
I used the debug tool and checked all of the visible attributes of all nested
elements from the imbedded Card_frame down to the rectangle creating the
"dot" circle. They all have their visible attributes set to false.

Yet the image still appears. I don't know why or where it is coming.
The smaller image means that it is applying the scale value in the
Card_frame that includes the image. Yet that Card_frame has the
scale overridden to 1.0, just as the Card_frame of the image displayed
behind it. Only the photo images should be visible.

This bugs me, because I can create a simpler project in which
the Card_frame with the two imbedded Card_frames, as the
elements of the project and the project works correctly.

I copy the files from the first project (with the error) to a new project
and it works correctly in the new project. I don't know what is going on.