A phenomenon which reminds me of the canonical survivorship bias story. In WWII they conducted studies to determine where the bullet holes where on aircraft which returned from bombing sorties, in order to determine which parts of the aircraft required armour. It took a statistician to point out that they actual needed to armour those places where they rarely saw damage on returning aircraft, as those parts are most likely the parts where being hit caused the aircraft to not return at all.

Sometimes it requires a bit of a leap of imagination in order to resolve these things.