I think there may have been a bit of a glitch at trtl.mine2gether.com. I re-started mining after the fork, received a payout then nothing for ages (should be about 500 every payment), then suddenly a 2500 drop of TRTL turned up in my wallet.
The TurtleCoin network faced at least three attacks in the last few days and the result on
https://trtl.mine2gether.com/ was that almost all blocks were orphaned. Then after some time after the system came back to normal and big payments were made.
I wonder if this maybe the reason TurtleCoin was dropped from the list of Cryptonight (and Cryptonight variant) coins from this handy dandy calculator..
https://www.cryptunit.com/?order=priceChat & Support cryptoknight.cc :
"we investigating on TRTL... few hours ago TRTL network is broken
kindly join on our discord
https://discord.gg/8mxZhxe and check pinned post on #turtlecoin channel..
also scrolled up conversation for more info"