diff --git a/api/orders/setLineItem.cfm b/api/orders/setLineItem.cfm
index 7e68dd0..d617d1e 100644
--- a/api/orders/setLineItem.cfm
+++ b/api/orders/setLineItem.cfm
@@ -489,14 +489,17 @@
     <cfelse>
       <!--- Deselecting: for modifiers that are default-checked, keep with Quantity=0 --->
       <!--- For root items or non-defaults, delete normally --->
+      <cfset arrayAppend(request.attachDebug, "DESELECT: ParentLineItemID=#ParentLineItemID#, ItemID=#ItemID#, qExisting.ID=#qExisting.ID#")>
       <cfif ParentLineItemID GT 0>
         <cfset qItemCheck = queryTimed(
           "SELECT IsCheckedByDefault FROM Items WHERE ID = ? LIMIT 1",
           [ { value = ItemID, cfsqltype = "cf_sql_integer" } ],
           { datasource = "payfrit" }
         )>
+        <cfset arrayAppend(request.attachDebug, "DESELECT: qItemCheck.IsCheckedByDefault=#val(qItemCheck.IsCheckedByDefault)#")>
         <cfif qItemCheck.recordCount GT 0 AND val(qItemCheck.IsCheckedByDefault) EQ 1>
           <!--- Default modifier: keep with Quantity=0 for "NO X" display --->
+          <cfset arrayAppend(request.attachDebug, "DESELECT: Setting Quantity=0 for LIID=#qExisting.ID#")>
           <cfset queryTimed(
             "UPDATE OrderLineItems SET Quantity = 0 WHERE ID = ?",
             [ { value = qExisting.ID, cfsqltype = "cf_sql_integer" } ],