diff --git a/src/pages/events/e/:eventId/EventLists/Search/DownloadDataModal.tsx b/src/pages/events/e/:eventId/EventLists/Search/DownloadDataModal.tsx
index f2a357b..f1b2d05 100644
--- a/src/pages/events/e/:eventId/EventLists/Search/DownloadDataModal.tsx
+++ b/src/pages/events/e/:eventId/EventLists/Search/DownloadDataModal.tsx
@@ -7,6 +7,8 @@ import {useForm} from "@mantine/form";
 import {useEffect} from "react";
 import {FormSchema} from "@/components/formUtil/formBuilder/types.ts";
 import {IconDownload} from "@tabler/icons-react";
+import {useShowDebug} from "@/components/ShowDebug.tsx";
+import {onlyUnique} from "@/lib/util.ts";
 
 const CHARSETS = [
     "utf-8", "ISO-8859-1", "windows-1252", "utf-16be", "utf-16le", "us-ascii"
@@ -36,6 +38,8 @@ export default function DownloadDataModal({opened, onClose, lists, event, query}
         }
     })
 
+    const {showDebug} = useShowDebug()
+
     // Fetch all pages
     useEffect(() => {
         if (opened && query.hasNextPage && !query.isFetchingNextPage) {
@@ -72,8 +76,8 @@ export default function DownloadDataModal({opened, onClose, lists, event, query}
         const entries = query.data?.pages.flatMap(p => p.items) ?? []
 
         const selectedFields = {
-            questionSchemaFields: formValues.values.questionSchemaFields,
-            statusSchemaFields: formValues.values.statusSchemaFields
+            questionSchemaFields: formValues.values.questionSchemaFields.filter(onlyUnique),
+            statusSchemaFields: formValues.values.statusSchemaFields.filter(onlyUnique)
         }
 
         // which question and status fields to include in the CSV
@@ -81,13 +85,13 @@ export default function DownloadDataModal({opened, onClose, lists, event, query}
             fields: [
                 ...event.defaultEntryQuestionSchema?.fields.filter(f => selectedFields.questionSchemaFields.includes(f.id)) ?? [],
                 ...lists.flatMap(l => l.entryQuestionSchema?.fields.filter(f => selectedFields.questionSchemaFields.includes(f.id)) ?? [])
-            ]
+            ].filter((v, i, arr) => arr.findIndex(t => (t.id === v.id)) === i)
         }
         const statusSchema = {
             fields: [
                 ...event.defaultEntryStatusSchema?.fields.filter(f => selectedFields.statusSchemaFields.includes(f.id)) ?? [],
                 ...lists.flatMap(l => l.entryStatusSchema?.fields.filter(f => selectedFields.statusSchemaFields.includes(f.id)) ?? [])
-            ]
+            ].filter((v, i, arr) => arr.findIndex(t => (t.id === v.id)) === i)
         }
 
         /**
@@ -105,7 +109,8 @@ export default function DownloadDataModal({opened, onClose, lists, event, query}
 
         // assemble the header (first question fields, then status fields)
         const header = [
-            "Person", "Person ID", "Anmeldezeitpunkt", "Anmelde-ID", "Anmelde-Liste",
+            ...(showDebug ? ["Person ID", "Eintrags ID"] : []),
+            "Person", "Anmeldezeitpunkt", "Anmelde-Liste",
             ...questionSchema.fields.map(f => f.label).map(escapeSeparator),
             ...statusSchema.fields.map(f => f.label).map(escapeSeparator)
         ]
@@ -115,7 +120,8 @@ export default function DownloadDataModal({opened, onClose, lists, event, query}
             const questionData = e.entryQuestionData || {}
             const statusData = e.entryStatusData || {}
             return [
-                e.expand?.user.username ?? "N/A", e.user, e.created, e.id, e.listName,
+                ...(showDebug ? [e.user, e.id] : []),
+                e.expand?.user.username ?? "N/A", e.created, e.listName,
                 ...questionSchema.fields.map(f => questionData[f.id]?.value?.toString() ?? "N/A").map(escapeSeparator),
                 ...statusSchema.fields.map(f => statusData[f.id]?.value?.toString() ?? "N/A").map(escapeSeparator)
             ]
@@ -149,8 +155,8 @@ export default function DownloadDataModal({opened, onClose, lists, event, query}
     >
         <div className={"stack"}>
             <ShowHelp>
-                In der CSV sind automatisch die Felder <em>Person</em>, <em>Person
-                ID</em>, <em>Anmeldezeitpunkt</em>, <em>Anmelde-ID</em> und <em>Anmelde-Liste</em> enthalten. Diese
+                In der CSV sind automatisch die Felder <em>Person</em>, <em>Anmeldezeitpunkt</em>,
+                und <em>Anmelde-Liste</em> enthalten. Diese
                 Felder können nicht abgewählt werden.
                 <br/>
                 Um Listen spezifische Daten herunterzuladen, wähle im vorherigen Schritt eine oder mehrere Listen aus.