Good to hear,
Disable the USBMap.kext from the config.plist and your have full USB but your need to remap your usb in that case as it’s not lined up with your board. That means your board and the b550e use different usb maps but it’s very easy to make your own and you can do it using this handy little script.
Python script for mapping USB ports in macOS and creating a custom injector kext. - corpnewt/USBMap
github.com
Make sure you disable the USBMap.Kext from the config and then restart and make a new one.