Problem with tasksequences management

Hi guys I've a problem with task sequence and I need some hints or suggestions about this problem. I've a dispatcher and some task executers. In particular the dispatcher on OnMessage creates a coordinated tasksequence including different CALLSUBTASKS for the taskexecuters, which are exploded in simple task sequences inside the BreakTo event of the task executers.On the BreakTo event of task executers there are also other CALLSUBTASKS which are exploded in simple task sequence into the OnMessage event of the same task executers. The problem is that after having performed the callsubtask inside the OnMessage, the active task sequence of the task executer has interrupted and it hasn't been going forward on the other tasks.
Thanks very much in advance for Your support.

Without a model this is difficult to find.
Have you checked this (from the help file):
"Note on Coordinated Task Sequences: Using the diagram above, if Task Sequence B is a coordinated task sequence, then the TaskExecuter that executes the call sub tasks task from Task Sequence A must be the first object to be allocated in the Task Sequence B."