OWB 10gR2 Process Flow returning status = Complete and Result = Null

Hi,
I have a process flows i ran lot of times with success (it shows status = complete and result = OK). It invokes a lot of mappings and other flows
Sometimes one of invoked mapping or flows shows status = complete and result = Null and main process too.
The main process i invoked by a PLSQL store procedure using wb_rt_api_exec package. When status = Null the store procedure hangs and I have to kill it.
When it happens, owb service restart (new record in WB_RT_SERVICE_JOB_LOGS).
Can anyone help me?
The configuration that I am working with is as below ---
OWB client version : 10.2.0.1.31
OWB repository version : 10.2.0.1.31
Oracle Workflow Version : 2.6.4.0.0
Database version : 10g Enterprise edition release 10.2.0.3.0

Sometimes transitions in process flows get scrambled and you have to fix them by hand.....this happens and I dont know why.
Basically what happens is: every operator in process flow has three outgoing transitions (in general) marked as 0, 1 and 2, when you take a look at details property of your operator then in the outgoing transitions tab you should have ORDER collumn 0, 1, 2 for warning, error and success.
If this is not the case (0,1,2) process will not know what to return as value, and what is more bizzare this works until it does not :)
I dont know if this is your case but it's worth checking.

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Message was edited by:
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OWB 10gR2 Process Flow returning status = Complete and Result = Null

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