I'm using 1x Vega 56 + 1x Vega 64 and with using 0.33b6 I got 7740 H/s on mining Conceal (Cryptonight Fast)
Since version 0.33b7 until the latest 0.33b10 I only get 5733 H/s on the same configuration.
Drivers: Adrenaline 18.6.1, Windows 10 x64
Thanks for the fast response but with the latest 0.33b11 I still only get 5746 H/s.