Code looks ok now. Sounds like hardware issues. So try different Arduino pins in case some are damaged. Post pics of the circuit and a schematic diagram (using Fritzing schematic view, not breadboard view, no need to show all 64 LEDs).
Code looks ok now. Sounds like hardware issues. So try different Arduino pins in case some are damaged. Post pics of the circuit and a schematic diagram (using Fritzing schematic view, not breadboard view, no need to show all 64 LEDs).