I've been using driver version 3.28.0 on my Mini-i Pro (2015) for a couple of days (Kernel Streaming on Win 10-64). No issues of any kind; I guess which might be the differences from version 3.23.

Here it is, driver version 3.23 for Matrix Mini-i Pro (2015):   https://www.sendspace.com/file/k9dbxt  

I found out that the problem with ASIO driver of the Matrix Mini-i Pro (2015) is due to the DRC software Dirac Live Processor (whose layer is between J-River and the Matrix). When used as plain output device of J-River, the ASIO driver works fine. There's a new version of the driver (3.23)...

Hello,   I'm using the Matrix Mini-I Pro (2015) with Windows 10-64bit, and, since I have some issues in the ASIO mode (buzzing and crackling sound changing from 44.1 kHz to higher sample rates; restarting the track many times eventually solves the issue) I wrote to the customer care. Mr...