I have the same problem when run the examples on P-NUCLEO-WB55 MB1355-D01, such as BLE_HeartRate and BLE_p2pServer in STM32Cube\Repository\STM32Cube_FW_WB_V1.16.0\Projects\P-NUCLEO-WB55.Nucleo\Applications\BLE. I have confirmed that LSE was ready by ...