diff --git a/src/app/components/apparatus-entry/apparatus-entry-detail/apparatus-entry-detail.component.ts b/src/app/components/apparatus-entry/apparatus-entry-detail/apparatus-entry-detail.component.ts
index ea051df1e..31823d2e4 100644
--- a/src/app/components/apparatus-entry/apparatus-entry-detail/apparatus-entry-detail.component.ts
+++ b/src/app/components/apparatus-entry/apparatus-entry-detail/apparatus-entry-detail.component.ts
@@ -71,12 +71,10 @@ export class ApparatusEntryDetailComponent implements OnInit, OnDestroy {
       return result;
     });
 
+    this.showLemma = !!this.data.lemma;
     if (this.witnessPanelService) {
       const isWitnessExcluded = this.data.isWitnessExcluded(this.witnessPanelService.witnessId);
-      this.showLemma = !!this.data.lemma && !isWitnessExcluded;
-    }
-    else{
-      this.showLemma = false;
+      this.showLemma = !isWitnessExcluded;
     }
   }
 
diff --git a/src/app/components/critical-apparatus/critical-apparatus.component.ts b/src/app/components/critical-apparatus/critical-apparatus.component.ts
index a49cdb92e..68be187f3 100644
--- a/src/app/components/critical-apparatus/critical-apparatus.component.ts
+++ b/src/app/components/critical-apparatus/critical-apparatus.component.ts
@@ -4,6 +4,7 @@ import { EVTStatusService } from '../../services/evt-status.service';
 import { combineLatest, map, Observable, tap } from 'rxjs';
 import { ApparatusEntry } from 'src/app/models/evt-models';
 import { HoverService } from 'src/app/services/hover.service';
+import { distinctBy } from 'src/app/utils/js-utils';
 
 @Component({
   selector: 'evt-critical-apparatus',
@@ -12,20 +13,24 @@ import { HoverService } from 'src/app/services/hover.service';
 })
 export class CriticalApparatusComponent {
   @Input() pageID: string;
-  @ViewChildren('appDetails', { read: ElementRef}) appDetails!: QueryList<ElementRef>;
+  @ViewChildren('appDetails', { read: ElementRef }) appDetails!: QueryList<ElementRef>;
 
   private appClasses = ['app'];
   private apparatusInCurrentPage = this.evtStatusService.getPageElementsByClassList(this.appClasses)
   entries$: Observable<{ entry: ApparatusEntry, isSelected: boolean }[]> = combineLatest([
-    this.apparatusInCurrentPage.pipe(map(data => data.flat())),
+    this.apparatusInCurrentPage.pipe(
+      map(data => data.flat()),
+      map(data => distinctBy(data, item => item.id))
+    ),
     this.hoverService.selectedApparatusEntries$
   ]).pipe(
     map(([appEntries, selectedAppEntries]) => {
       const apparatusEntries = appEntries as ApparatusEntry[];
-      const apps = apparatusEntries.map(entry => {
-        const selectedApp = selectedAppEntries.find(app => app.additionalAttributes.exponentId === entry.additionalAttributes.exponentId);
-        return { entry, isSelected: !!selectedApp };
-      });
+      const apps = apparatusEntries
+        .map(entry => {
+          const selectedApp = selectedAppEntries.find(app => app.additionalAttributes.exponentId === entry.additionalAttributes.exponentId);
+          return { entry, isSelected: !!selectedApp };
+        });
       const orderedApps = apps.sort((a, b) => {
         const lengthComparison = a.entry.exponent.length - b.entry.exponent.length;
         if (lengthComparison !== 0) {
diff --git a/src/app/services/xml-parsers/structure-xml-parser.service.ts b/src/app/services/xml-parsers/structure-xml-parser.service.ts
index f9afb9500..6f61ebd03 100644
--- a/src/app/services/xml-parsers/structure-xml-parser.service.ts
+++ b/src/app/services/xml-parsers/structure-xml-parser.service.ts
@@ -327,6 +327,13 @@ export class StructureXmlParserService {
         const app = item as ApparatusEntry;
         if (!app) throw new Error("Invalid type " + app);
 
+        const callback = (content: any[]) => this.addApparatusExponents(
+          content, 
+          onApparatusEntryReplaced, 
+          getExponentLabel, 
+          onShouldResetCounter);
+        this.addNestedApparatusExponents(app, callback);
+
         const id = this.getExponentId();
         const to = id; // the exponent itself as the To element
         let exponent: ApparatusEntryExponent = null;
@@ -423,6 +430,27 @@ export class StructureXmlParserService {
     }
   }
 
+  private addNestedApparatusExponents(app: ApparatusEntry, callback: (content: any[]) => void) {
+    const contentValues: ContentValue[] = [];
+    this.populateValuesWithContent(app, contentValues);
+    for (const value of contentValues) {
+      callback(value.content);
+    }
+  }
+
+  private populateValuesWithContent(obj: any, accumulator: ContentValue[]) {
+    const values = Object.values(obj)
+      .flatMap(x => x as any)
+      .filter(x => typeof (x) === 'object');
+    for (let index = 0; index < values.length; index++) {
+      const value = values[index];
+      if (value.content) {
+        accumulator.push(value);
+        this.populateValuesWithContent({ content: value.content }, accumulator);
+      }
+    }
+  }
+
   private getExponentId(): string {
     const uuid = uuidv4();
     return 'app-exponent-' + uuid;
@@ -603,4 +631,8 @@ function getEditionOrigNode(el: XMLElement, doc: Document) {
   }
 
   return el;
+}
+
+interface ContentValue {
+  content: any[]
 }
\ No newline at end of file
diff --git a/src/app/utils/js-utils.ts b/src/app/utils/js-utils.ts
index 980f5d26a..ef1f51a12 100644
--- a/src/app/utils/js-utils.ts
+++ b/src/app/utils/js-utils.ts
@@ -116,3 +116,13 @@ export function interleave<T>(items: T[], separator: T): T[] {
     }
     return result;
 }
+
+export function distinctBy<T, K>(array: T[], keySelector: (item: T) => K): T[] {
+    const seen = new Set<K>();
+    return array.filter(item => {
+        const key = keySelector(item);
+        if (seen.has(key)) return false;
+        seen.add(key);
+        return true;
+    })
+}
\ No newline at end of file