bug where only one share per address was marked as paid, not all of them. That makes some shares paid multiple times. That bug should be fixed now and shares should be tagged as paid ok now.

yes, amount in stats is quite on spot for you, but other miners might have a long list of unpaid shares which was already paid. That 50% I was refering to was of mined vertcoins for whole node ( ie 7vtc mined per block, you should get 3.5vtc more or less).
yes, bug kinda ate it. It was counting some shares multiple times instead of once, so they were paid multiple times, which hurt your earnings. and the MINED COINS are sent to miners on my node by that script, which had that counting bug. So they are distributed between them. I said that multiple times and dont know how to said it differently.
and again, that 0.1vtc and 1mon is setup in payout script from devs. Check it on github. everyone can change it. I left it that way, because it was setup by devs. No ripping intensions. I was talking to bengt (dev) and asking him about that setup. He said I can make it bigger, so I did, it is now higher and will be tweaked as payouts go on. I checked some nodes and they have too 0.1 vtc limit. Everyone who did not changed that payout script have it setup that way.

and as I said, taht payout is paying all shares from now back for which it has coins available.