Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
you are using an USB chager Yes, I had such problem with my previous project that is postponed for right now.
Good to hear, that it was not my problem 😊 and gonna be fixed.