cryptonight shares being interrupted excessively

[Horsetoothless]

all the crazy activity this last week with this algorithm paying great rates, have seen all my shares being interrupted by some unknown process for over a whole hour in a string. leaving me with 0 earning.
Is this a type of dev-fee? No mention of dev-fee as have seen on other algorithm miner versions.
estimating over 1/2 of my found shares are being interrupted and mBTC/Day reflects this.
Any clarification about the interruption cause or is it redirection to paid cloud miner market?
Which looks like it is about double the pay rate of earnings? NHML 18.14 pre2 sgminer 5.5.5