diff --git a/alfa-client/libs/binary-file-shared/src/lib/binary-file.service.ts b/alfa-client/libs/binary-file-shared/src/lib/binary-file.service.ts
index 064f9d02f798c0aa88ac73b0614fa62be584390a..1a81c0ccffe97ac1483656b2616eb2689acc6750 100644
--- a/alfa-client/libs/binary-file-shared/src/lib/binary-file.service.ts
+++ b/alfa-client/libs/binary-file-shared/src/lib/binary-file.service.ts
@@ -21,16 +21,37 @@
  * Die sprachspezifischen Genehmigungen und Beschränkungen
  * unter der Lizenz sind dem Lizenztext zu entnehmen.
  */
-import { BlobWithFileName, createEmptyStateResource, createErrorStateResource, createStateResource, EMPTY_STRING, getMessageForInvalidParam, HttpError, HttpHeader, isNotNil, isUnprocessableEntity, isValidationFieldFileSizeExceedError, sanitizeFileName, StateResource, } from '@alfa-client/tech-shared';
+import {
+  BlobWithFileName,
+  createEmptyStateResource,
+  createErrorStateResource,
+  createStateResource,
+  EMPTY_STRING,
+  getMessageForInvalidParam,
+  HttpError,
+  HttpHeader,
+  isNotNil,
+  isUnprocessableEntity,
+  isValidationFieldFileSizeExceedError,
+  sanitizeFileName,
+  StateResource,
+} from '@alfa-client/tech-shared';
 import { SnackBarService } from '@alfa-client/ui';
 import { HttpErrorResponse, HttpResponse } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { getUrl, Resource, ResourceUri } from '@ngxp/rest';
 import { saveAs } from 'file-saver';
-import { isNil } from 'lodash-es';
+import { isNil, uniqueId } from 'lodash-es';
 import { BehaviorSubject, forkJoin, Observable, of, throwError } from 'rxjs';
 import { catchError, map, mergeMap, startWith, switchMap } from 'rxjs/operators';
-import { BinaryFileListResource, BinaryFileResource, FileUploadType, ToUploadFile, UploadFile, UploadFilesByType, } from './binary-file.model';
+import {
+  BinaryFileListResource,
+  BinaryFileResource,
+  FileUploadType,
+  ToUploadFile,
+  UploadFile,
+  UploadFilesByType,
+} from './binary-file.model';
 import { BinaryFileRepository } from './binary-file.repository';
 
 @Injectable({ providedIn: 'root' })
@@ -67,7 +88,7 @@ export class BinaryFileService {
 
   _buildUploadFile(toUploadFile: ToUploadFile): UploadFile {
     return {
-      key: crypto.randomUUID(),
+      key: uniqueId(),
       fileToUpload: toUploadFile.file,
       uploadedFile: this._handleUpload(toUploadFile),
     };
diff --git a/alfa-client/libs/binary-file/src/lib/multi-file-upload-editor/multi-file-upload-editor.component.ts b/alfa-client/libs/binary-file/src/lib/multi-file-upload-editor/multi-file-upload-editor.component.ts
index 69efe8e3985f31d6c8e39c03328a082360a7b75d..68685a3aaba2b8fa0140a40e6031de8c26708d11 100644
--- a/alfa-client/libs/binary-file/src/lib/multi-file-upload-editor/multi-file-upload-editor.component.ts
+++ b/alfa-client/libs/binary-file/src/lib/multi-file-upload-editor/multi-file-upload-editor.component.ts
@@ -64,7 +64,7 @@ export class MultiFileUploadEditorComponent extends FormControlEditorAbstractCom
 
   @HostListener('change', ['$event.target.files'])
   public onFilesUpload(fileList: FileList): void {
-    this.binaryFileService.isUploadInProgress(KOMMENTAR_UPLOADED_ATTACHMENTS).subscribe(console.info);
+    this.binaryFileService.isUploadInProgress(KOMMENTAR_UPLOADED_ATTACHMENTS);
     this._uploadFiles(fileList);
     this.setErrors();
   }
diff --git a/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.spec.ts b/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.spec.ts
index 0190b738556eb899d0cfcbff7fe769e0786b373a..dfd5872b43d27c3d021899b00a6fecb7c90b05aa 100644
--- a/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.spec.ts
+++ b/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.spec.ts
@@ -1,6 +1,11 @@
 import { BinaryFile2ContainerComponent, BinaryFileModule } from '@alfa-client/binary-file';
 import { BinaryFileResource } from '@alfa-client/binary-file-shared';
-import { createEmptyStateResource, createErrorStateResource, createStateResource } from '@alfa-client/tech-shared';
+import {
+  ConvertProblemDetailToErrorMessagesPipe,
+  createEmptyStateResource,
+  createErrorStateResource,
+  createStateResource,
+} from '@alfa-client/tech-shared';
 import {
   existsAsHtmlElement,
   getElementComponentFromFixtureByCss,
@@ -10,7 +15,7 @@ import {
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { expect } from '@jest/globals';
 import { AttachmentComponent } from '@ods/system';
-import { MockComponent } from 'ng-mocks';
+import { MockComponent, MockModule } from 'ng-mocks';
 import {
   createBinaryFileResource,
   createFile,
@@ -29,8 +34,8 @@ describe('MultiFileUploadListItemComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [MultiFileUploadListItemComponent, BinaryFileModule],
-      declarations: [MockComponent(BinaryFile2ContainerComponent)],
+      imports: [MultiFileUploadListItemComponent, ConvertProblemDetailToErrorMessagesPipe],
+      declarations: [MockModule(BinaryFileModule), MockComponent(BinaryFile2ContainerComponent)],
     }).compileComponents();
 
     fixture = TestBed.createComponent(MultiFileUploadListItemComponent);
@@ -101,7 +106,7 @@ describe('MultiFileUploadListItemComponent', () => {
         const attachmentComponent: AttachmentComponent = getElementComponentFromFixtureByCss(fixture, attachmentTestId);
 
         expect(attachmentComponent.loadingCaption).toEqual(component.file.name);
-        expect(attachmentComponent.errorMessages).toBeUndefined();
+        expect(attachmentComponent.errorMessages).toEqual([]);
         expect(attachmentComponent.isLoading).toEqual(true);
       });
     });
diff --git a/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.ts b/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.ts
index 78ac718278216141af9895e0f9042caa580b6487..74aaf872b431284832c628b73180a6e5eef0c797 100644
--- a/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.ts
+++ b/alfa-client/libs/binary-file/src/lib/multi-file-upload-list-container/multi-file-upload-list-item/multi-file-upload-list-item.component.ts
@@ -1,6 +1,6 @@
 import { BinaryFileModule } from '@alfa-client/binary-file';
 import { BinaryFileResource } from '@alfa-client/binary-file-shared';
-import { StateResource } from '@alfa-client/tech-shared';
+import { ConvertProblemDetailToErrorMessagesPipe, StateResource } from '@alfa-client/tech-shared';
 import { Component, EventEmitter, Input, Output } from '@angular/core';
 import { AttachmentComponent, AttachmentWrapperComponent } from '@ods/system';
 
@@ -13,7 +13,7 @@ export interface FileToDelete {
   selector: 'ods-multi-file-upload-list-item',
   standalone: true,
   templateUrl: './multi-file-upload-list-item.component.html',
-  imports: [AttachmentComponent, AttachmentWrapperComponent, BinaryFileModule],
+  imports: [AttachmentComponent, AttachmentWrapperComponent, BinaryFileModule, ConvertProblemDetailToErrorMessagesPipe],
 })
 export class MultiFileUploadListItemComponent {
   @Input() uploadStateResource: StateResource<BinaryFileResource>;
diff --git a/alfa-client/libs/vorgang-shared/src/lib/+state/vorgang.reducer.spec.ts b/alfa-client/libs/vorgang-shared/src/lib/+state/vorgang.reducer.spec.ts
index 00e3850600787b3f9fa2b3dc16a06ee8ecdb08ad..c3358acb510534afa4df0bca712d8b2ff8161bb5 100644
--- a/alfa-client/libs/vorgang-shared/src/lib/+state/vorgang.reducer.spec.ts
+++ b/alfa-client/libs/vorgang-shared/src/lib/+state/vorgang.reducer.spec.ts
@@ -954,7 +954,7 @@ describe('Vorgang Reducer', () => {
         it('should clear vorgaenge', () => {
           const state: VorgangState = Reducer.updateByRouteData(initialState, routeData);
 
-          expect(state.vorgaenge).toBe([]);
+          expect(state.vorgaenge).toEqual([]);
         });
       });
 
@@ -986,7 +986,7 @@ describe('Vorgang Reducer', () => {
         it('should clear vorgaenge', () => {
           const state: VorgangState = Reducer.updateByRouteData(initialState, routeData);
 
-          expect(state.vorgaenge).toBe([]);
+          expect(state.vorgaenge).toEqual([]);
         });
       });
     });