Pablo I was able to reproduce this issue. I used that demo. but when I again replaced the images, it was fine somehow that is what I encountered.
It seems the places where there were break points only those images did not get saved although I had replaced every single one of them and used same images on other places.
So, after that I closed the project reopened it replaced those images which were not found SAVED the project then quit and then opened the project again to check and ALL were updated that is what happened from my testing. I did the testing 2 times, and the problems and solution were done in the same way.
something similar on his video about the breakpoint one although there is one where there was no breakpoint, yet it was not found
