diff --git a/src/app/pipes/participants.pipe.ts b/src/app/pipes/participants.pipe.ts
index 9856911c6..92019441b 100644
--- a/src/app/pipes/participants.pipe.ts
+++ b/src/app/pipes/participants.pipe.ts
@@ -6,7 +6,7 @@ import { EventPerson } from 'src/app/models/eventperson.model'
 })
 export class ParticipantsPipe implements PipeTransform {
 
-  transform(EventPerson: EventPerson[]): any {
+  transform(EventPerson: EventPerson[] = []): any {
     let taskParticipants = [];
     let taskParticipantsCc = [];
 
diff --git a/src/app/shared/agenda/edit-event/edit-event.page.ts b/src/app/shared/agenda/edit-event/edit-event.page.ts
index 494b832fa..4eef38a80 100644
--- a/src/app/shared/agenda/edit-event/edit-event.page.ts
+++ b/src/app/shared/agenda/edit-event/edit-event.page.ts
@@ -302,9 +302,8 @@ export class EditEventPage implements OnInit {
           SerialNumber: '',
         };
 
-        this.attachmentsService.setEventAttachmentById(DocumentToSave).subscribe(()=>{
-          this.getAttachments(this.postEvent.EventId);
-        });
+        await this.attachmentsService.setEventAttachmentById(DocumentToSave).toPromise();
+        this.getAttachments(this.postEvent.EventId);
 
       } else if(remove) {
         this.attachmentsService.deleteEventAttachmentById(e.Id).subscribe( res=> {})