System Workbench for STM32

Hello,

Can you tell us the config ?
ST-Link V2 and STM32L476 ?
Did you connect Reset line from ST-link to the L4 target ?

The change has been done to connect to the target under reset so you can reconnect to a device that is in low power mode for example.
The reset config changed is in stm32l4.cfg file.

Are you using SWD mode ?
If not, can you try in SWD.

Rgds,
Laurent