Endless loop in TeraTerma when Flashing SBSFU UserApp /STM32WB55

[ABous.4]

i have a problem, when flash the SBSFU UserApp with the scipt and reset the Board. i get this:

= [SBOOT] SECURE ENGINE INITIALIZATION SUCCESSFUL

= [SBOOT] STATE: CHECK STATUS ON RESET

WARNING: A Reboot has been triggered by an Option Byte reload!

= [SBOOT] STATE: CHECK NEW FIRMWARE TO DOWNLOAD = [SBOOT] STATE: CHECK USER FW STATUS A FW is detected in the slot SLOT_ACTIVE_1 = [SBOOT] STATE: VERIFY USER FW SIGNATURE = [SBOOT] STATE: EXECUTE USER FIRMWARE = [SBOOT] System Security Check successfully passed. Starting...

i get this in an endless loop and i don't get to the Main Menu. i use stm32 wb55.

Please help me !!