Enabling RELAY feature in nRF Connect SDK

Question

Hi, 
 I have setup exactly as described in this page Bluetooth: Mesh sensor server — nRF Connect SDK 1.4.2 documentation (nordicsemi.com) , 
 I can successfully read the temperature in client, but the message is not relayed to the next board, 
 After checking, i saw that the RELAY feature is disabled in nRF Mesh mobile app and i'm unable to Set Relay in Configuration Server too(option is blacked out) 
 But in code , i could see 
 
 CONFIG_BT_MESH_RELAY =y in proj.conf

CONFIG_BT_MESH_RELAY =y 
 CONFIG_BT_MESH_RELAY_ENABLED =y

CONFIG_BT_MESH_RELAY_RETRANSMIT_COUNT =2 
 CONFIG_BT_MESH_RELAY_RETRANSMIT_INTERVAL =20 in .config

#define CONFIG_BT_MESH_RELAY 1 
 #define CONFIG_BT_MESH_RELAY_ENABLED 1 
 #define CONFIG_BT_MESH_RELAY_RETRANSMIT_COUNT 2 
 #define CONFIG_BT_MESH_RELAY_RETRANSMIT_INTERVAL 20 in autoconf.h 
 
 Could someone help me out... 
 TIA

Aleksander Nowakowski · Answer

Initially, after provisioning, the state of Relay feature is unknown. We only know that it's supported (the flag in Composition Data has supported/not supported meaning). We need to map it to Enabled/Disabled/Not supported (3 states) of the relay state in CDB (database). It may incorrectly be mapped to Disabled until you pull to refresh in Config Server Model screen. Then it reads the current state and should also update Device Features. We'll look into it.