The forum will need to know the actual code you are using, its much easier for us than using the external code generator which may well not provide the same code you are using.
And an actual link to the actual hardware you are using, its not fully clear exactly which hardware ‘IOT-MCU V1’ actually is.
Is the IOTMCU V1 not the Lora Radio node V1.0? I see both names on the PCB.
he didn’t answer before … So it’s a waste of time/energy , we are not paranormal here imho 
When quoting parts or boards, it helps to provide a link or picture so we can be sure exactly what board you are using.
I am not sure this will work, I will give it a try:
but mine is 886 MHz and since today good working with Cayenne: 
less then 5 uA in deepsleep… 
Well thats the board.
The problem might well be in your code. .
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