Zigbee light sleep

[mvoss96]

Im struggeling to make zigbee work with light sleep.

i know power management and tickless idle are not activated in arduino core.
So im trying to work around it.
What i want is basically:

-> Start the ESP
-> take a measurement
-> initialize Zigbee
-> report a zigbee value f.e. temperature
-> stop zigbee
-> go to light sleep
-> wake up
-> initialize Zigbee
-> report a zigbee value f.e. temperature
...

so basically what the deep sleep example does but with light sleep because for my application i cant use deep sleep since i need a pwm output during sleep .

what i tried is basically

Zigbee.begin()
sensor.report()
Zigbee.stop()
light sleep()
Zigbee.start

Sadly that does not work: it does not throw any errors but after waking up there are no longer new values reported to the coordinator

I also tried to call zigbee.begin again fter waking up but that throws a runtime exception.

Can you tell me the correct way to reinitialize zigbee after light sleep ?