AMD RX460/2GB are recognized but not hashing
Hello.
I have 4x AMD RX460/2GB and 2x AMD R9 380/4GB in one Rig.
This compilation works fine with Claymore GPU Miner (9.7+10.2) and AMD Driver Version 16.12.2 = getting ~2500 H/s

In XMRIG-AMD all cards are recognized, but the 460's are not hashing!

![reco](https://user-images.githubusercontent.com/33719753/32888961-4aada0da-cac9-11e7-914a-cdac0d4d84c9.PNG)

![hashing](https://user-images.githubusercontent.com/33719753/32889026-7e6e56bc-cac9-11e7-948c-e18ce56d9601.PNG)

How to get all cards to work?