Book

I connected above 20 chapters to a book file for different language. whenever im opening book file a particuar chapter only asking to reconnect all the graphic files but rest of the file graphics connecting automatically. now my question is why the particular chapter asking to reconnect all the graphics?? if anyone knows the answer please tell me. i placed image for that i just ignored all the images

Note: im using unstrucutred frame maker 2019

thanks in advance