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.
I have seen this before, where the Disassembly View does not get the message to refresh after the code is reloaded.
Try generating a focus/move/resize event on the window. If that doesn't work then close and re-open the View.