Contradiction with Genesis 47:9
Jacob describes his years as few and evil, which suggests a negative view of his life, contrasting with the hopeful return in Genesis 45:25.
Genesis 47:9: And Jacob said unto Pharaoh, The days of the years of my pilgrimage [are] an hundred and thirty years: few and evil have the days of the years of my life been, and have not attained unto the days of the years of the life of my fathers in the days of their pilgrimage.
Contradiction with Genesis 46:3-4
God promises to make Jacob a great nation in Egypt, which could contradict leaving for Canaan in Genesis 45:25.
Genesis 46:3-4: And he said, I [am] God, the God of thy father: fear not to go down into Egypt; for I will there make of thee a great nation: