Alexander Mukhanchikov StackTrace приведите
at StockSharp.Plaza.Transaction.#=qcReV6fPpBLRTLuDfzY$qGQ==(Int64 #=qHwW3JqG399C9KicfLQY9iA==)
at StockSharp.Plaza.Transaction.SetTransactionId(Int64 id)
at StockSharp.Plaza.PlazaTrader.#=qeqim3HF0e6k9LfQDb9sCLc4wfjiFnTyswujcovUDqIY=(Security #=qiS2VInfxyu6bvp$z2ECcnA==, Nullable`1 #=qDVpyniQ3JavFsEG8Rv5HiQ==, Portfolio #=qc_eap9sf1fajFN3tCLoBxQ==, Int64 #=qQqpFN0I1Zfd6WyPC4saFFA==, Order[] #=qkx1NA7dLIWodf8ArP$t9vg==)
at StockSharp.Plaza.PlazaTrader.CancelOrders(Nullable`1 isStopOrder, Portfolio portfolio, Nullable`1 direction, String classCode, Security security)
<Тут мой обработчик>
at Ecng.Common.DelegateHelper.SafeInvoke[T](Action`1 handler, T arg)
at Ecng.ComponentModel.EventsContainer`1.Raise(IEnumerable`1 items)