ESP system with BTS7960 IBT_2

[SchmidtGundersen]

I manage to resolve the issue, buy adding a DC12v to DC5v Step-Down converter and connect that in this way:

GND from 5V DC converter to GND on the KC868-A6-V1.4SP.
GND from 5V DC converter to GND on the BTS7960 IBT_2

5V DC from 5V DC converter to VCC on the BTS7960 IBT_2
5V DC from 5V DC converter to R_EN and L_EN on the BTS7960 IBT_2 (To always have motor enabled)

This resolved my boot issue with the KC868-A6-V1.4SP..