Problems with new US WEST POOL?

Has anyone encountered issues since switching to the new us west pool?
I have had two cases where all miners stop mining without crashing and they all show connected to pool but at 0 hash rate. No errors and one line says “mining unknow” where it should say “eth”. restarting the miner and rebooting rig does nothing. Switching to the naw pool restores the mining.
Anyone know what might be the issue,