frontend/src/app/tasks/task-dashboard/task-dashboard.component.html

@@ -63,7 +63,7 @@
     </ng-container>
     <ng-container matColumnDef="delete">
       <th mat-header-cell *matHeaderCellDef mat-sort-header>
-        <button mat-icon-button color="primary" (click)="repeatSelectedTasks()" [disabled]="selection.isEmpty()"><mat-icon>event_repeat</mat-icon></button>
+        <button *ngIf="subTasks.length == 0" mat-icon-button color="primary" (click)="repeatSelectedTasks()" [disabled]="selection.isEmpty()"><mat-icon>event_repeat</mat-icon></button>
       </th>
       <td mat-cell *matCellDef="let task">
         <button mat-icon-button color="warn" (click)="deleteTask(task)"><mat-icon>delete</mat-icon></button>

frontend/src/app/tasks/task-dashboard/task-dashboard.component.ts

@@ -26,6 +26,8 @@ export class TaskDashboardComponent implements OnChanges{
       this.datasource.data = this.subTasks;
       this.datasource.paginator = this.paginator!;
       this.datasource.sort = this.sort!;
+
+      this.displayedColumns = this.displayedColumns.filter(col => col !== 'select')
     }
   }