Eversolo T8 USB transfer rate issue.

I have installed an Eversolo T8 streamer, and have an issue, has anyone else seen this problem ad/or what am I missing.

If I use the USB to DAC output the frequency is limited to 48 kHz.

There is a setting for "EOS", use original speed, but that does not affect the transfer rate, it is stuck at 48 kHz.  On models other than the T8 there is a menu option to use the original bit rate, but I cannot find it!  

24/192 is fine on Coax.

Can anyone help?

A further note for anyone purchasing this device, if you are going to install an SSD and copy music files onto it using your computer (at least for Windows, I know not about macos) you MUST format the SSD as NTFS or it will not show up as a shere.