I am attempting to enable extended anonymous advertising using the B85m BLE Single Connection SDK however the advertising event property "ADV_EVT_PROP_EXTENDED_MASK_ANONYMOUS_ADV" appears to be ignored. Advertising parameters as below:

blc_ll_setExtAdvParam( ADV_HANDLE0, ADV_EVT_PROP_EXTENDED_MASK_ANONYMOUS_ADV , ADV_INTERVAL_1S, ADV_INTERVAL_1S, BLT_ENABLE_ADV_ALL, OWN_ADDRESS_PUBLIC, BLE_ADDR_PUBLIC, NULL, ADV_FP_NONE, TX_POWER_0dBm, BLE_PHY_1M, 0, BLE_PHY_1M, ADV_SID_0, 0);

After starting advertising the following is captured using Wireshark showing the address still present:

Bluetooth Low Energy Link Layer
Access Address: 0x8e89bed6
Packet Header: 0x2a07 (PDU Type: AUX_ADV_IND, TxAdd: Public)
Extended Advertising Header
..00 1001 = Extended Header Length: 9
00.. .... = Advertising Mode: Non-connectable Non-scannable (0x0)
Extended Header Flags: 0x09
.... ...1 = Advertiser Address: Present
.... ..0. = Target Address: Not Present
.... .0.. = CTE Info: Not Present
.... 1... = Advertiser Data Info: Present
...0 .... = Aux pointer: Not Present
..0. .... = Sync Info: Not Present
.0.. .... = TX Power: Not Present
0... .... = Reserved: Not Present
Advertising Address: TelinkSe_74:01:3e (a4:c1:38:74:01:3e)

Can you please confirm is there is any other setting I need to change in order to use anonymous advertising?