diff --git a/ui/src/app/metadata/provider/container/provider-wizard.component.html b/ui/src/app/metadata/provider/container/provider-wizard.component.html
index 52d6f5e35..49bad2b07 100644
--- a/ui/src/app/metadata/provider/container/provider-wizard.component.html
+++ b/ui/src/app/metadata/provider/container/provider-wizard.component.html
@@ -1,4 +1,4 @@
-<section class="section" aria-label="Add a new metadata source - how are you adding the metadata information?" tabindex="0">
+<section class="section" aria-label="Add a new metadata provider." tabindex="0">
     <div class="section-header bg-info p-2 text-white">
         <div class="row justify-content-between">
             <div class="col-md-12">
diff --git a/ui/src/app/metadata/provider/effect/collection.effect.ts b/ui/src/app/metadata/provider/effect/collection.effect.ts
index 1eb9e5093..70aff3257 100644
--- a/ui/src/app/metadata/provider/effect/collection.effect.ts
+++ b/ui/src/app/metadata/provider/effect/collection.effect.ts
@@ -115,6 +115,7 @@ export class CollectionEffects {
         map(action => action.payload),
         withLatestFrom(this.store.select(fromI18n.getMessages)),
         map(([error, messages]) => {
+            console.log(error);
             let message = `${error.errorCode}: ${this.i18nService.translate(error.errorMessage, null, messages)}`;
             message = error.cause ? `${message} - ${error.cause}` : message;
             return new AddNotification(
diff --git a/ui/src/app/notification/component/notification-item.component.ts b/ui/src/app/notification/component/notification-item.component.ts
index bc7b93e27..b080724e5 100644
--- a/ui/src/app/notification/component/notification-item.component.ts
+++ b/ui/src/app/notification/component/notification-item.component.ts
@@ -1,5 +1,6 @@
 import { Component, Input, Output, EventEmitter, OnInit } from '@angular/core';
 import { Notification } from '../model/notification';
+import { LiveAnnouncer } from '@angular/cdk/a11y';
 
 @Component({
     selector: 'notification-item',
@@ -10,11 +11,15 @@ export class NotificationItemComponent implements OnInit {
     @Input() notification: Notification;
     @Output() clear: EventEmitter<Notification> = new EventEmitter<Notification>();
     readonly timerCallback = () => this.clear.emit(this.notification);
-    constructor() {}
+    constructor(
+        private announce: LiveAnnouncer
+    ) {}
 
     ngOnInit(): void {
         if (this.notification.timeout > 0) {
             setTimeout(this.timerCallback, this.notification.timeout);
         }
+
+        this.announce.announce(`Error: ${this.notification.body}`);
     }
 } /* istanbul ignore next */
diff --git a/ui/src/app/schema-form/widget/filter-target/filter-target.component.html b/ui/src/app/schema-form/widget/filter-target/filter-target.component.html
index 4ec2b789e..059d0acdd 100644
--- a/ui/src/app/schema-form/widget/filter-target/filter-target.component.html
+++ b/ui/src/app/schema-form/widget/filter-target/filter-target.component.html
@@ -52,7 +52,7 @@
                                 class="component-control"
                                 limit="10"
                                 [formControl]="search"
-                                [matches]="ids$ | async"
+                                [matches]="ids"
                                 (keydown.enter)="onSelectValue(search.value)">
                             </auto-complete>
                             <small [class.text-danger]="search.invalid && search.touched" translate="message.entity-id-min-unique">
diff --git a/ui/src/app/schema-form/widget/filter-target/filter-target.component.ts b/ui/src/app/schema-form/widget/filter-target/filter-target.component.ts
index 7af0c8b0d..835e2f005 100644
--- a/ui/src/app/schema-form/widget/filter-target/filter-target.component.ts
+++ b/ui/src/app/schema-form/widget/filter-target/filter-target.component.ts
@@ -40,7 +40,9 @@ export class FilterTargetComponent extends ObjectWidget implements OnDestroy, Af
     ) {
         super();
         this.ids$ = this.store.select(fromFilters.getEntityCollection);
-        this.ids$.subscribe(ids => this.ids = ids);
+        this.ids$.subscribe(ids => {
+            this.ids = [...ids];
+        });
 
         this.search
             .valueChanges
diff --git a/ui/src/app/shared/autocomplete/autocomplete.component.html b/ui/src/app/shared/autocomplete/autocomplete.component.html
index 558dcb454..2611cfc28 100644
--- a/ui/src/app/shared/autocomplete/autocomplete.component.html
+++ b/ui/src/app/shared/autocomplete/autocomplete.component.html
@@ -54,7 +54,9 @@
         [attr.aria-label]="this.input.value"
         [innerHTML]="option | highlight:this.input.value">
     </button>
-    <p class="dropdown-item dropdown-item-noresults" *ngIf="matches && matches.length === 0 && !processing">
+    <p class="dropdown-item dropdown-item-noresults"
+        role="option"
+        *ngIf="matches && matches.length === 0 && !processing">
         {{ noneFoundText }}
     </p>
 </div>
diff --git a/ui/src/app/shared/autocomplete/autocomplete.component.ts b/ui/src/app/shared/autocomplete/autocomplete.component.ts
index 472db6dd5..80e360114 100644
--- a/ui/src/app/shared/autocomplete/autocomplete.component.ts
+++ b/ui/src/app/shared/autocomplete/autocomplete.component.ts
@@ -119,11 +119,15 @@ export class AutoCompleteComponent implements OnInit, OnDestroy, OnChanges, Afte
 
     ngOnChanges(changes: SimpleChanges): void {
         if (changes.matches && this.matches) {
-            const count = this.matches.length;
-            this.live.announce(count === 0 ? 'No results available' : `${count} result${count === 1 ? '' : 's'} available`);
+            this.announceResults();
         }
     }
 
+    announceResults(): void {
+        const count = this.matches.length;
+        this.live.announce(count === 0 ? 'No results available' : `${count} result${count === 1 ? '' : 's'} available`);
+    }
+
     writeValue(value: any): void {
         this.input.setValue(value);
     }
@@ -229,6 +233,8 @@ export class AutoCompleteComponent implements OnInit, OnDestroy, OnChanges, Afte
             selected: searchForOptions ? ((autoselect && optionsAvailable) ? 0 : -1) : null
         });
         this.propagateChange(query);
+
+        setTimeout(() => this.announceResults(), 250);
     }
 
     handleInputFocus(): void {
@@ -370,4 +376,4 @@ export class AutoCompleteComponent implements OnInit, OnDestroy, OnChanges, Afte
             ...this.state.currentState
         };
     }
-} /* istanbul ignore next */
+}