Yes, there's some evidence of interbreeding but not enough to prove Homo Sapiens evolved from Neanderthals. Also, with due respect, are you suggesting that the "out-of-Africa CroMags" were black or Negroid because I don't think at that early stage there is evidence that they were. And didn't the spread of out-of-Africa hominids occur before the advent of Cro-Magnon man?
I'm not saying that H.Sap evolved from Neanderthals, I'm just recounting that there is some genetic research that suggests that there was interbreeding between early "anatomically modern humans" and Neanderthals with respect to those of European/Asian descent, but no genetic indication of Neanderthal genes in black Africans. In other words, Neanderthals and H.Sap diverged from their common ancestor, but for Europeans and Asians there was some degree of re-merging later.
are you suggesting that the "out-of-Africa CroMags" were black or Negroid
I have no idea what the "out-of-Africa CroMags" looked like with respect to skin color. I would imagine that neither modern sub-Saharan Africans nor modern Europeans look that much like their common ancestor with respect to skin color. I would think that a human living in East Africa and hunting during the day would need a fairly dark complexion to not burn in the sun.