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DFU Mesh over BLE

Hi.

I have problem with dfu over ble with mesh sdk. I use example experimental_lpn as guide. When I add this dfu functionality in my project, my application is not responding. It seems that this issue appears in function nrf_mesh_dfu_cmd_send() in nrf_mesh_dfu_init(). It looks like infinite loop. I dont see any error messages or asserts.

My log output:

<t:          0>, main.c,  300, ----- BLE Mesh Light Switch Server Demo-----
<info> app: Setting vector table to bootloader: 0x000F8000
<info> app: Setting vector table to main app: 0x00026000
<info> app: ble_dfu_buttonless_backend_init after
<info> app: sd_ble_gatts_service_add after
<info> app: sd_ble_uuid_vs_add after
<info> app: ble_dfu_buttonless_char_add after
<t:       9514>, main_mesh.c,  111, BEFORE mesh_stack_init
<t:       9520>, mesh_stack.c,   72, BEFORE nrf_mesh_init
<t:       9990>, nrf_mesh_dfu.c,  644, AFTER dfu_cmd_handler_set
<t:       9997>, nrf_mesh_dfu.c,  656, AFTER rand_prng_seed
<t:      10009>, nrf_mesh_dfu.c,  675, BEFORE nrf_mesh_dfu_cmd_send

My code in nrf_mesh_dfu_init():

    __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "BEFORE nrf_mesh_dfu_cmd_send")
    error_code = nrf_mesh_dfu_cmd_send(&init_cmd);
    __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "AFTER nrf_mesh_dfu_cmd_send");

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