OnlyKey App Stuck at "Working", Linux

I’m using Elementary Linux, I’m seeing this:

I’ve tried different USB ports. But it doesn’t seem to be able to access the OnlyKey after entering the pin.

The key works on OSX… so its not the hardware. Its something to do with the app.

Anyone know the problem and the fix?

UPDATE: The dev rules didn’t work on this OS. What did work was the Snap package.
Typically with a UDEV rule you have to reload it then reinsert the USB device.