NRF9151-SMA NTN MDMEV notifications

I am testing the NRF9151-SMA-DK NTN function using the mfw_nrf9151-ntn_1.0.0 firmware and serial_modem_v2.0.0-preview1_nrf9151dk_normal_mtrace app. I keep seeing 

%MDMEV: SEARCH STATUS 3

%MDMEV: SEARCH STATUS 4

notifications when trying to find establish connection.

What do these mean? I only find the documentation for status 1 & 2.

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