[closed] Downlink timestamp

 I have a node that on certain instances is configured as class A and in others as class C (due to multicast). On the loraserver i created a class A device and checked the “Device supports Class-C”. For both classes i wish to send data in the rx2 window only. (Changed the loraserver.toml file with rx_window=2).

When the node is configured as Class-A, the downlink json object seems to change between subsequent downlinks. In some instances it contains the timestamp and in others it does not. Is there any specific reason for this ?