i mine on eggpool with stable 4.5 Gh hashrate
payments began to have wide variation - from 7 to 19 per payment last 2 weeks
previously it was in the area 14-16 per payment
why so ?
I rarely check here, way more active on discord.
Could have a look with your miner address.
Can be the day/night oscillation: see the difficulty graph, atm it's spread over 106
https://hypernodes.bismuth.live/plots/mainnet/diff.phpand that gives very different blocks count for first 12h and latest 12h.
See on eggpool home, it's also visible - both for egg blocks found, and network blocks found (not a pool issue)
This behaviour depends on the net hash and adjustment algo.
If hashrate is stable, diff converges. There, it keeps oscillating.
Miners mining only at low diff do feed that behaviour.