Try using the latest pipeline version of OpenRGB (https://openrgb.org/releases.html#pl) and try running as administrator. It will only work if the device is already showing as connected by USB. Unfortunately, I don't have any personal experience with amBX devices and the code was contributed by a community developer so I don't really know what interface it's using or additional troubleshooting steps. IIRC it's using the libusb interface so you may have to install the WinUSB driver for the device using Zadig (not sure, just sometimes needed for libusb devices).
thanks you will give that a try and report back
OpenRGB
Open source RGB lighting control that doesn't depend on manufacturer software. Formerly https://lemmy.ml/c/openrgb
OpenRGB is a free and open source utility for controlling the RGB lighting of various PC components, peripherals, and accessories. It supports Windows, Linux, and MacOS. A wide range of hardware is supported - keyboards, mice, motherboards, RAM, GPUs, smart lights, and more from a wide range of manufacturers. OpenRGB also provides plugin support, which enables plugins like the OpenRGB Effects Plugin to create synchronized, customized effects that span your whole setup.
Official website: https://openrgb.org/
GitLab: https://gitlab.com/CalcProgrammer1/OpenRGB
Codeberg: https://codeberg.org/OpenRGB/OpenRGB
Discord: https://discord.com/invite/AQwjJPY
Mastodon: https://floss.social/@OpenRGB
Patreon: https://www.patreon.com/CalcProgrammer1