error executing syncproject

During the execution of a sync project (target: SQL 2016) I get the following error

[2161006] Error executing full synchronization!
at VI.Projector.Editor.Internal.GlobalActionHandler.HandleEvent(Object sender, String eventName, Object[] args)
at VI.Projector.Editor.Internal.GlobalActionHandler._ExecuteStartInfo(IProjectionStartInfo startInfo)
[1777018] Error executing synchronization project (HR1)'s workflow (Full).
at VI.Projector.Projection.ProjectorEngine.<ExecuteAsync>d__3.MoveNext()
[810304] SQL statement 'QueuePond_End' could not be found.
at VI.DB.DataAccess.LimitedSqlAgent.<_GetStatementAsync>d__2.MoveNext()

The synchronization works, all objects are written.

The error only occurs if data has changed in the target system.

Version is

Any ideas?