Hola Javier como estas?
Intentaron hacer distintos pagos y siempre les da el mismo error?
Distintos pagos te referís a si usamos las tarjetas de prueba?
Te comparto los json que se genera al momento de realizar el circuito.
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En esta oportunidad al volver a ingresar al portal de pago, el estado cambio a cobrada y en Nucleo también.
Sigo realizando pruebas.