Can confirm this issue is on vega as well.
Block 3M = 34 MH
Block 4M = 29 MH
Block 5M = 22 MH
Funny will be amd releasing the fix for vega cards miners and leave polaris owners on dark, i wonder what kind explanation amd will give but I think amd already fixed vega gaming drivers before launch, so amd can say veqa dos not suffer the same as polaris but in reality it does and amd did not want to fix polaris hehe
This is a driver issue. AMD can fix it.
The DAG epoch issue: it seems AMD fixed it for Vega in drivers, nothing for polaris yet