Во-первых логи за прошлый день блокируются-видимо не вызывается метод Stream.Close() или Stream.Dispose().
Во-вторых получил ошибку с запущенным логом ордеров.
20:31:53.710|Error |Plaza |System.OverflowException: Value was either too large or too small for an Int32.
at System.Decimal.ToInt32(Decimal d)
at #=q0JgtHapkQYVTtjYP4wglPcxXXR$qpqI2YyQUMUIeKfl3pBiW9yzWmHamsipnprlEAGxUbrQHQa3wGKa$CHp$ew==.#=qZ8txTqPxm$3Izhd5wOaN6w==(List`1 #=qLuAHYj2ZioycrX0Q58zU3w==, Decimal #=qy_XsUwIjI1QvjbZZrQ1kfA==, Decimal #=qW7QLBQGC0s3hC5zqjIk0Og==, Decimal #=qFMFwZ93ndDt9Cq4w254rpw==, Security #=qfZKZC7pct33NRrzgjOsjyQ==)
at #=qqw7DKb0POrTz7KKXPbljaw$Zha1SNWzNniKKSfqxMwkB_gkByF54uJCH2CLpcUSGxXLTUMrlzOPkPVeDBNSk7w==.#=qN2dIwjvbTn9r5Pta1FHxww==(List`1 #=qlludmflDZI3Dze7nj01y8A==, #=qNG6quPhNTeA_lNcDEZ8_5cvZ7udeZdMO47P2O8amgZXExIxE092OY3IIN7hfCOZ3 #=q44J$W7oJoGpEQKDT6WuHqQ==, Decimal #=qKmA6ze_0Yaw2hShe$9Msfw==)
at #=qqw7DKb0POrTz7KKXPbljaw$Zha1SNWzNniKKSfqxMwkB_gkByF54uJCH2CLpcUSGxXLTUMrlzOPkPVeDBNSk7w==.#=qb3T0sxGq$bdXcycmB9uU1g==(List`1 #=qbUFe_5fmUeWqYTD0qRKlhQ==, IEnumerable`1 #=qf_O63ObMrcG03DgKtFfr9g==, #=qNG6quPhNTeA_lNcDEZ8_5cvZ7udeZdMO47P2O8amgZXExIxE092OY3IIN7hfCOZ3 #=qBkx0y9TbqqKvMF$BaHPlzw==)
at #=qX3OhqnqEph0ylOwbVoprdX1srcF9c1dB41xXyq_36B$gtMqbwjnZkBLdMpYtoq$m2UnoFQDQbQnXu54FK8CNkQ==.#=qh29W$pKHIJEWmJ4aKOg5GCTNW0GslrtHpop_s9Zn8TY7lyipPMllUA9LfaSL$65dW1upcDDT4h7aAUfgZW27UTt22P4stVLZ5c2sj7YSrYw=(IEnumerable`1 #=qM9aViFL9FoUaYNPAR5EQlA==, #=q0bq_6wFeov3yOJgLnRCzVYciLR61z4kiqIDegOgdjT_6YhdC39n1i52D13DO2Zni #=qDmyCChG2SZl8AtrZxGiRmQ==)
at #=qh5OubS5xh7gDG0OMHR6nr3xXWKlov18A9WtmobPOhe_Xz4uoUAby0kkPNddHxzlD.#=qAxHlRi3Qu5eEZW_GARHtnQ==(DateTime #=qYB91FhjvypjkV7xJrom9WA==, #=qUr_tkAJI830yhtJ6qYEFuw==[] #=qJdAKS46m$Z4abi$aKMTb9w==, Boolean #=qesUgx5yQgapqJyZDVBv_iA==)
at #=qh5OubS5xh7gDG0OMHR6nr3xXWKlov18A9WtmobPOhe_Xz4uoUAby0kkPNddHxzlD.Save(IEnumerable`1 #=qzmfQtwAVRU8lELgisTmWCg==)
at StockSharp.Hydra.Core.BaseMarketDataSource.SaveSecurityChanges(Security security, IEnumerable`1 changes, Boolean raiseDataLoadedEvent) in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\BaseMarketDataSource.cs:line 306
at StockSharp.Hydra.Core.TraderMarketDataSource`1.SaveValues[T](IDictionary`2 data, Func`1 getNewValues, Func`4 saveValues) in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\TraderMarketDataSource.cs:line 111
at StockSharp.Hydra.Core.TraderMarketDataSource`1.ProcessNewData() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\TraderMarketDataSource.cs:line 122
at StockSharp.Hydra.Core.TraderMarketDataSource`1.Load() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\TraderMarketDataSource.cs:line 104
at StockSharp.Hydra.Plaza.PlazaTraderSource.Load() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Plugins\Plaza\PlazaTraderSource.cs:line 102
at StockSharp.Hydra.Worker.Downloader.Download() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Hydra\Worker.cs:line 172
В третьих вот еще одна ошибка
17:27:55.228|Error |Plaza |System.ArgumentOutOfRangeException: Неправильная цена сделки 127805965.
Parameter name: trades
Actual value was 0.
at #=q9O6X$zb$S4eKJ_y59En3VZz1vcJyln5tGtg1sD7cPjMKCM5CXXwdOOJNPXRYxO_r.#=qb3T0sxGq$bdXcycmB9uU1g==(List`1 #=qCt6cS37Asw12_NaITHPB1g==, IEnumerable`1 #=qNMh47e2bHQJYJ_c$5ahapg==, #=qjKzL3$3_NePBk1jCt_Qq7j_tSVec_RcqQKJ9oUQR$zvY_ItSdhC9wfqvL_$KKb3j #=q8f8ZgEWBHxa0JNL3I7gGZA==)
at #=qX3OhqnqEph0ylOwbVoprdX1srcF9c1dB41xXyq_36B$gtMqbwjnZkBLdMpYtoq$m2UnoFQDQbQnXu54FK8CNkQ==.#=qh29W$pKHIJEWmJ4aKOg5GCTNW0GslrtHpop_s9Zn8TY7lyipPMllUA9LfaSL$65dW1upcDDT4h7aAUfgZW27UTt22P4stVLZ5c2sj7YSrYw=(IEnumerable`1 #=qM9aViFL9FoUaYNPAR5EQlA==, #=q0bq_6wFeov3yOJgLnRCzVYciLR61z4kiqIDegOgdjT_6YhdC39n1i52D13DO2Zni #=qDmyCChG2SZl8AtrZxGiRmQ==)
at #=qh5OubS5xh7gDG0OMHR6nr3xXWKlov18A9WtmobPOhe_Xz4uoUAby0kkPNddHxzlD.#=qAxHlRi3Qu5eEZW_GARHtnQ==(DateTime #=qYB91FhjvypjkV7xJrom9WA==, #=qUr_tkAJI830yhtJ6qYEFuw==[] #=qJdAKS46m$Z4abi$aKMTb9w==, Boolean #=qesUgx5yQgapqJyZDVBv_iA==)
at #=qh5OubS5xh7gDG0OMHR6nr3xXWKlov18A9WtmobPOhe_Xz4uoUAby0kkPNddHxzlD.Save(IEnumerable`1 #=qzmfQtwAVRU8lELgisTmWCg==)
at StockSharp.Hydra.Core.BaseMarketDataSource.SaveTrades(Security security, IEnumerable`1 trades, Boolean raiseDataLoadedEvent) in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\BaseMarketDataSource.cs:line 243
at StockSharp.Hydra.Core.TraderMarketDataSource`1.SaveValues[T](IDictionary`2 data, Func`1 getNewValues, Func`4 saveValues) in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\TraderMarketDataSource.cs:line 111
at StockSharp.Hydra.Core.TraderMarketDataSource`1.ProcessNewData() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\TraderMarketDataSource.cs:line 119
at StockSharp.Hydra.Core.TraderMarketDataSource`1.Load() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Core\TraderMarketDataSource.cs:line 104
at StockSharp.Hydra.Plaza.PlazaTraderSource.Load() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Plugins\Plaza\PlazaTraderSource.cs:line 102
at StockSharp.Hydra.Worker.Downloader.Download() in e:\StockSharpReleases\StockSharp_4.1.9\Hydra\Hydra\Worker.cs:line 172
Она кстати и в других версиях гидры была