Hi guys!
Just registered to let you know that i just tried the latest version of trixx 6.5.0 with the blockchain driver (aug23), and it's working again!

From the notes:
6.5.0 2017-9-25
Added support for Radeon RX Vega
Fixed overclocking, fan monitoring on Catalyst 17.7.2 and newer
Added VDDC and VDDCI power monitoring for Polaris
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http://www.sapphiretech.com/catapage_tech.asp?cataid=291&lang=eng