Dynamic Selector in CV Screen Scope gets changed in the middle of execution and then error id being thrown

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Hello,
I have defined a dynalic selector on CV Screen Scope like this below:
<wnd aaname='Revenue Cycle - Revenue Cycle - Registration*' app='wfica32.exe' cls='Transparent Windows Client' title='Revenue Cycle - Revenue Cycle - Registration*'/>

And I have started the automation process for 500 TransactionItem in the Queue.
After running around 450 TransactionItem, the process found no kinds of exception of errors but after that below Exceptions are found in the logs.

Is it possible that the dynamic selector which I have defined can be changed during the execution of the process? As can been seen from below exceptions that it has changed.
For what reasons, Can it be happen? or Do I have to define the dynamic selector in other ways?

"CV Screen Scope: Could not find the UI element corresponding to this selector:
<wnd aaname='Revenue Cycle - Revenue Cycle - Registration **- JAIN, MIKA S - -***' app='wfica32.exe' cls='Transparent Windows Client' title='Revenue Cycle - Revenue Cycle - Registration **- JAIN, MIKA S - -***'/>

The closest matches found are:
[50%] <wnd aaname='Revenue Cycle - Revenue Cycle - Registration **- TAYLOR, ELIZABE -** \\Remote' app='wfica32.exe' cls='Transparent Windows Client' title='Revenue Cycle - Revenue Cycle - Registration **- TAYLOR, ELIZABE -** \\Remote'/>"

"System exception.Could not find the UI element corresponding to this selector:
<wnd aaname='Revenue Cycle - Revenue Cycle - Registration **- JAIN, MIKA S - -***' app='wfica32.exe' cls='Transparent Windows Client' title='Revenue Cycle - Revenue Cycle - Registration - JAIN, MIKA S - -*'/>

The closest matches found are:
[50%] <wnd aaname='Revenue Cycle - Revenue Cycle - Registration **- TAYLOR, ELIZABE -** \\Remote' app='wfica32.exe' cls='Transparent Windows Client' title='Revenue Cycle - Revenue Cycle - Registration - TAYLOR, ELIZABE - \\Remote'/> at Source: SearchWithName.xaml - Invoke Workflow File: SearchWithMRN.xaml - Invoke Workflow File: ScrapePatientDetails.xaml - Invoke Workflow File: CV Screen Scope"

As you can see, from both the exceptions, I have removed the Name Part, i.e., (JAIN, MIKA S) from the dynamic selector, Then why after 450 records being executed, this error is coming up.

Any help would be appreciated.
Thanks and Cheers