Jan 2024 update - can not find the corrupt files?????

You may find your "corrupt image" is something that is actually off the visible slide area. How or why it is there is beyond me, but I have seen similar errors about "corrupt" files in that way. Go to the slide layer in question (for example, Scene 2) and look at the base layer; you may need to zoom out to see the workspace around the slide; or look in the timeline for "Picture 1" and see if you can find it that way. I would then delete it and save the file with a different name; then see if that changes the error message(s) you are seeing.