Variable "not defined"? It's being set and incremented..

Question

Hello, everyone.
I've got a real confusing issue.  I have one page that grabs some data from the database, then loops through seven included files in the CFOUTPUT.  One of the seven includes is setting a variable at the top of the page called "confirmed" to zero (0), has its own loop where it increments the value by one under certain conditions, then displays the value after its own loop is done.
The problem is that I am occasionally getting an error message that says "confirmed" is undefined (it happens 3 out of 5 times.)  How can this be?  Is there any way that anyone can think of that would cause this variable to disappear during processing?
Thanks,
^_^

Answer 1

I know variables don't disappear on their own.  Something is affecting it, I just don't know what; that's why I'm asking if anyone else knows of something that might cause this.
It's a short file, I'll include it, here.  I cannot see where "confirmed" is being removed.  It is used only in this page, nowhere else.
^_^
<cfsetting enablecfoutputonly="yes" showdebugoutput="yes" requesttimeout="86400">
<cfparam name="marketplace_module" default="AMAZON">
<cfparam name="marketplace_pk" default="">
<cfquery name="marketplaceParams" datasource="#data_source#">
<!--- GET DATA ON MARKET --->
</cfquery>
<cfwddx action="WDDX2CFML" input="#marketplaceParams.marketplaceData_wddx#" output="marketplaceData">
<cfset amazon_sellername = marketplaceData.account_sellername>
<cfset This_Host = Root_Host & "\" & marketplaceParams.clientid>
<cfset amazon_dir_local = This_Host & "\AMAZON\ref">
<cfset amazon_file = "ref_#DateFormat(Now(),'mmddyyyy')##TimeFormat(Now(),'HHmm')#.txt">
<cftry>
<cfquery name="order" datasource="#data_source#">
<!--- QUERY TO GET ORDERS --->
</cfquery>
<cfset confirmed = 0><!--- IT'S BEING INITIALIZED HERE --->
<cfif order.RecordCount>
<cfset content = "order-id order-item-id refund-amount reason message">
<cffile action="WRITE" file="#amazon_dir_local#\#amazon_file#" output="#content#" addnewline="Yes">
<cfoutput query="order">
<cfset refund_amount = DecimalFormat(unit_price+unit_shipping)>
<cfif unit_status EQ 9>
<cfset reason = "Inventory No Longer Available">
<cfelse>
<cfset reason = "Customer Return">
</cfif>
<cfset message = "">
<cfset content = order_id & CHR(9) & order_item_id & CHR(9) & refund_amount & CHR(9) & reason & CHR(9) & message>
<cffile action="APPEND" file="#amazon_dir_local#\#amazon_file#" output="#content#" addnewline="Yes">
<cfquery name="update" datasource="#data_source#">
<!--- QUERY TO UPDATE DATABASE --->
</cfquery>
<cfset notes = "Refund for Line #lineno# submitted to AMAZON.">
<cf_noteit clientid="1111" action="add" keytype="orderno" key="#orderno#" username="#userData.username#" notes="#notes#" show="0">
<cfset confirmed = val(confirmed) + 1><!--- BEING INCREMENTED HERE --->
<cfdump var="#confirmed#" expand="yes" label="confirmed value"><!--- JUST ADDED THIS PART --->
</cfoutput>
</cfif>
<cfcatch>
<cfoutput>#cfcatch.Message# - #cfcatch.Detail#</cfoutput>
<cfmail to="[my email address]" from="[server email address]" subject="An error">amazon.ref.exp.cfm has erred#chr(13)##chr(10)##cfcatch.Message# - #cfcatch.Detail#</cfmail>
</cfcatch>
</cftry>
<cfoutput>#val(confirmed)# orderitems refunded.<br/></cfoutput><!--- THIS IS WHERE CF TELLS ME IT'S NOT DEFINED --->
<cfif val(confirmed) gt 0>
<cf_logit siteid="123" username="#userData.username#" action="#val(confirmed)# AMAZON Orders refunded.">
<cffile action="WRITE" file="#amazon_dir_local#\#amazon_file#.flag" output="#amazon_file#" addnewline="No">
<cfoutput>File #amazon_file# written to #amazon_dir_local#.<br/></cfoutput>
</cfif>