CANOPENNode NMT setup to put remote node in operation mode

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Hello,
I am using Zephyr CANOPENNode implementation for STM32H750 controller.

The documentation mentions

• Object 0x1F80, value = 0x8 - "NMT slave shall enter the NMT state
  Operational after the NMT state Initialization autonomously (self starting)"
• Object 0x1F80, value = 0x2 - "NMT slave shall execute the NMT service
  start remote node with node-ID set to 0"

With 0x1F80 set to 0x8, the device is self starting in operation mode. But when I try setting 0x1F80=0x02 to start all remote nodes in operation, it does not work.

Any pointers on how to get it working will be very helpful.