USB Devices not being detected... rpi0 server

Hi;

Just discovered VirtualHere .. nice concept and had it working and now... NOT.

I installed on rpi0 the server with:

wget https://www.virtualhere.com/sites/default/files/usbserver/vhusbdarm

I added to rc.local to start on boot just before exit 0 : /home/pi/vhusbdarm -b &

rebooted, and the server seems to be running as expected.

running Windows 10/11 client . It discovers the server after the rpi boot.

I place devices into the rpi0 via a USB adapter to micro USB, however they are not discovered.

What is very strange is that it was working yesterday, quite well. I plugged in various USB thumb drives, and two different RF Keyboard dongles.

They all worked perfectly, the keyboards responded quickly as if directly plugged in to the PC I was using.

I ordered a 4port Hub Hat for the rpi0 from Amazon, should have it tomorrow . 3d printed a case for the package. ready to go.

Now it doesn't work. ?

What can I do to check that the server is functioning properly?