SNES firmware receiver shifts the miser button sequence through SNAC

[Hifly-rc]

Thank you to the author for opening up the BR project. During my self-made process, I found that the SNES firmware receiver shifted the mister button sequence through SNAC, and the PS4 controller's up key was incorrectly recognized as the down key, and the controller's down key was recognized as the left key, which is equivalent to one clock cycle. I tried to add and remove the SN74 logic IC on the circuit, but it didn't work. The original SNES controller input SNAC is working normally. I don't know where to solve the problem, hardware or software?

[Hifly-rc]

This is a logical sequence, the original SNES to SNAC control is correct, but the PS4 controller BR to SNAC control is offset due to errors