Thank you, Column, for tips and suggestions.
I store all files locally. I didn't rename the project.
During the past week, I updated 189 images. The system that I
document uses a set of stylized buttons for user controls. Those
buttons recently migrated to a new style. Despite the new style,
the buttons remain the same size. Rather than redo all of my screen
shots, I opened my screen shots one at a time and pasted copies of
the new buttons over the old buttons.
My editing procedure was rather simple. I configured
RoboScreenCapture to be the image editor for RH. Then, I went to
the Project tab, to the Images directory, and right-clicked an
image for a contextual menu. In the menu, I clicked Edit. That
launched the image in RoboScreenCapture. I would see which button
needed to be replaced (e.g., Save). I had a copy of every button
from production staff. I would open whichever button I needed in a
separate instance of RoboScreenCapture. I would copy that button
and paste into onto the original image and save. Image dimensions
remained the same for each image.
As far as I know, this is a valid means of updating images in
RH. I have successfully done this in the past (though, only for 2
or 3 images at a time).
I wonder if the name of the Images folder is the issue here.
Perhaps, it became corrupted while editing all of these images?
Even if that is the case, I cannot imagine how to fix it other than
using Access. Even then, that sounds like a long shot. Unless
another member of the forum has other ideas, I will probably follow
your advice (first, delete CPD file; if no joy, open project from
XPJ file).