Someone has problems with the hashrate drops on amd cards? My 2 rigs have the same problem, by random some cards is reset to 25-26mhs and after 10-30 seconds it returns to 30-32mh as it should be

. On Claymore there is no such problem.
I've got that too but im not bothering the 30-45 secs. Phoenix is more stable then claymore to me & less devfee.