Contradiction with Genesis 37:33
This verse contradicts because it describes Jacob believing Joseph is dead, after seeing his bloody coat.
Genesis 37:33: And he knew it, and said, [It is] my son's coat; an evil beast hath devoured him; Joseph is without doubt rent in pieces.
Contradiction with Genesis 42:13
This verse contradicts because the brothers refer to Joseph as dead, consistent with Jacob's earlier belief.
Genesis 42:13: And they said, Thy servants [are] twelve brethren, the sons of one man in the land of Canaan; and, behold, the youngest [is] this day with our father, and one [is] not.
Contradiction with Genesis 44:28
This verse contradicts because Jacob laments thinking Joseph was torn to pieces, believing Joseph to be dead.
Genesis 44:28: And the one went out from me, and I said, Surely he is torn in pieces; and I saw him not since:
Contradiction with Genesis 37:35
This verse shows Jacob mourning Joseph as if he is dead, contradicting the report that Joseph is alive.
Genesis 37:35: And all his sons and all his daughters rose up to comfort him; but he refused to be comforted; and he said, For I will go down into the grave unto my son mourning. Thus his father wept for him.