An Activity killing another activity without my permmission

Hi friends,

I am new to K2.net so if this is too simplistic a question, please bare with me.

As part of a workflow solution, we have developed a process called the TheftAndHijack process (see attachment: TheftAndHijack.JPG).

I am having a problem with the "Assign Validator" and the "Initial Documentation" Activities (see below and attachment). Both the activities are reached when the following is true:- [{K2.ProcessInstance.DataFields("Status").Value}]=Intimated. As such the two activities are reached at the same time.

The bizzar problem that I am having is that when I try to complete the "Initial Documentation" Activity, the "Assign Validator"
activity also completes. This is not suppose to be the case. Each Activity is suppose to complete without interfering with the other.

_________Assign Validator
|
|
|
START-------CLAIM INTIMATION--------
|
|
|______Initial Documentation


Please help.