Mark a cell range (i.e. $B$3:$F$8)
Go to Insert > Names > Define
Type a name (i.e. "test") and click "Add"
Got to Insert > Names > Define
Click on "test"
Change the cell range in field "Assigned to" (i. e. to $B$5:$F$8)
See an instant crash.
*** This bug has been marked as a duplicate of bug 40571 ***