iceprog Can't find iCE FTDI USB device on OSX Sierra

[PureF]

I have gotten iceprog working using VirtualBox (Ubuntu 18.04) and a previous Mac OS (10.9 Maverick); however it's not working on my newer Sierra OS which is the same machine that has VirtualBox installed. I keep getting this error:

Can't find iCE FTDI USB device (vendor_id 0x0403, device_id 0x6010 or 0x6014).

I also followed the same additional instructions that I used to get it working on my older Mac OS: http://www.clifford.at/icestorm/notes_osx.html (also tried the instruction at the bottom: sudo kextunload -b com.apple.driver.AppleUSBFTDI) and it stopped running (verified using kextstat | grep).

I have installed lsusb as well to check if that IDs show up and sure enough they do. Is this some permissions issue? I tried: sudo iceprog example.bin (but the issue still exists).

Any help on this is greatly appreciated.