The current "issue" is that genetic mechanisms for development and adaptation of functional biological systems, such as eyes, are evidently virtually identical across phyla, indicating that either:
they are pre-programmed in ancestors (intelligent design) or
they are a common building block (creationism.)
This runs contrary to the classical evolution hypothesis that the branches of the "tree of life" developed as a result of random mutations. It may however be explained by automata autonomous self-organizing complexity (tortoise, Wolfram, Rocha, Pattee.)
But the methodology whereby such a mechanism could arise has not yet been ascertained:
"The Origin-of-Life Prize" ® (hereafter called "the Prize") consists of $1.35 Million (USD) paid directly to the winner(s). The Prize will be awarded for proposing a highly plausible mechanism for the spontaneous rise of genetic instructions in nature sufficient to give rise to life. To win, the explanation must be consistent with empirical biochemical and thermodynamic concepts as further delineated herein, and be published in a well-respected, peer-reviewed science journal(s).