Has this problem been fixed?
---
when nicehash falls below my set price in the password.
sgminer doesnt go to next pool, it stays stuck in waiting for nicehash and seems to still be submitting shares, therefore never failing over.
Yes.
https://nicehash.com/software/Would be nice if you combined Scrypt/Scrypt-N/SHA256/X11 rewards before payout

They are combined together. You just don't see that on graph.
X11 or Scrypt? Do you set diff param in password?