Exception in ParseTruncSqlInfo or ParseTruncSqlInfoAsync

[ftrl]

In our application, in a fairly busy environment, we randomly notice errors occurring in FirebirdSql.Data.Client.

Here's the typical stackTrace of the problem that occurs:

Exception Msg: Index was outside the bounds of the array.

StackTrace:
   at FirebirdSql.Data.Client.Managed.Version10.GdsStatement.ParseTruncSqlInfo(Byte[] info, Byte[] items, Descriptor[] rowDescs)
   at FirebirdSql.Data.Client.Managed.Version10.GdsStatement.ProcessPrepareResponse(GenericResponse response)
   at FirebirdSql.Data.Client.Managed.Version11.GdsStatement.Prepare(String commandText)
   at FirebirdSql.Data.FirebirdClient.FbCommand.Prepare(Boolean returnsSet)
   at FirebirdSql.Data.FirebirdClient.FbCommand.ExecuteCommand(CommandBehavior behavior, Boolean returnsSet)
   at FirebirdSql.Data.FirebirdClient.FbCommand.ExecuteReader(CommandBehavior behavior)
   at LinqToDB.Data.DataConnection.ExecuteReader(CommandBehavior commandBehavior)
   at LinqToDB.Data.DataConnection.ExecuteDataReader(CommandBehavior commandBehavior)
   at LinqToDB.Linq.QueryRunner.ExecuteQuery[T](Query query, IDataContext dataContext, Mapper`1 mapper, Expression expression, Object[] ps, Object[] preambles, Int32 queryNumber)+MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Business.TablesReference.TVAImpl.GetList(String connectionString, Int32 company, TVAType type)

The query is very simple and returns very little data.

Any idea what might be causing the problem?

Thanks

[cincuranet]

I need reproducible scenario.

[ftrl]

I understand, but unfortunately it's impossible.
It's totally random.
And I don't know where to look for a clue.

[cincuranet]

Without repro chances for fix are very slim. At least create memory dump and I can try to have a look.