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Third party module module BLE not working

Hi!

I just got my PCB with a Telit BlueMod+S42 Module on it (nRF52832).

I' using the LESC feature and ist works properly on the PCA1004 and on the Telit DevKit (same Module).

But when I flash my own board, I can't get BLE to work properly.

I'm using SES V3.32 with SD S132 v5.1.0.

RTT is working, and I get following output, without any hint on what went wrong:

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<info> app: Initializing nrf_crypto.
<info> app: Initialized nrf_crypto.
<debug> nrf_sdh: State request: 0x00000000
<debug> nrf_sdh: Notify observer 0x00036660 => ready
<debug> nrf_sdh: State change: 0x00000000
<debug> nrf_sdh: State change: 0x00000001
<debug> nrf_sdh_ble: RAM starts at 0x200020E0
<info> app: Generating key-pair
<info> app: Converting to raw type
<info> app: Template example started.
<info> app: LFCLK OK!
<info> app: Fast advertising.
<debug> nrf_sdh_ble: BLE event: 0x10.
<info> app: Connected.
<debug> nrf_sdh_ble: BLE event: 0x11.
<info> app: Fast advertising.
<info> app: Disconnected.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

When using with the Telit DevBoard i get folowing output:

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<info> app: Initializing nrf_crypto.
<info> app: Initialized nrf_crypto.
<debug> nrf_sdh: State request: 0x00000000
<debug> nrf_sdh: Notify observer 0x00036670 => ready
<debug> nrf_sdh: State change: 0x00000000
<debug> nrf_sdh: State change: 0x00000001
<debug> nrf_sdh_ble: RAM starts at 0x200020E0
<info> app: Generating key-pair
<info> app: Converting to raw type
<info> app: Template example started.
<info> app: LFCLK OK!
<info> app: Fast advertising.
<debug> nrf_sdh_ble: BLE event: 0x10.
<info> app: Connected.
<debug> nrf_sdh_ble: BLE event: 0x13.
<info> app: PM EVT: 1
<debug> app: PM_EVT_CONN_SEC_START: peer_id=65535
<info> app: PM EVT: 5
<info> app: BLE_GAP_EVT_SEC_PARAMS_REQUEST
<debug> nrf_sdh_ble: BLE event: 0x18.
<info> app: BLE_GAP_EVT_LESC_DHKEY_REQUEST
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX