On the 19th, that was the date that the coin Forked due to a bug in the PoS code. Therefore all the coins mined on that date wouldn't have been valid. This was not an issue with our pool.
Is that so? I receive my coins (early 19.7) from dwarfpool with some delay. I can printscr my wallet if you want. And why you don't answer to my email? Great support.
Further, I lost (personally) 500,000 JPC due to the fork - which I guess over all isn't that much - but it was basically the profits from the last month or so of the pool. I have a wallet file now that is unusable - just keeps coming up with "Mempool transaction" errors. Had to create a new wallet file for the relaunch.