diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index b9beb43..41e1ba3 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -6,3 +6,5 @@ User | PR | SOON Reward | SMR Address | Authorized By | Comments |
 ---- | -- | ----------- | ----------- | ------------- | -------- |
 [@emmap3-do](https://github.com/emmap3-do) | https://github.com/soonaverse/app/pull/47 | 500 | smr1qzt5qs6m6s2us8ll0hdfefzpr43cdz2xmjzywmrkz0sc2uyegvzjwazr6f8 | [@adam_unchained](https://github.com/adam_unchained) | Testing, continuous support in #dev channel
 [@emmap3-do](https://github.com/emmap3-do) | https://github.com/soonaverse/app/pull/56 | 75 | smr1qzt5qs6m6s2us8ll0hdfefzpr43cdz2xmjzywmrkz0sc2uyegvzjwazr6f8 | [@adam_unchained](https://github.com/adam_unchained) | Minor fixes
+[@amenconi](https://github.com/amenconi) | https://github.com/soonaverse/app/pull/128 | 76'000 | smr1qrncyy5lcfpr4hta0hg7qp2cmw6ssm0ycllx5nnz5pwcup8rxs0zzp2jp64 | [SOON_COMMITTEE - request 83](https://github.com/soonaverse/foundation/issues/83) | Bulk Buying feature
+[@emmap3-do](https://github.com/emmap3-do) | https://github.com/soonaverse/app/pull/128 | 15'200 | smr1qzt5qs6m6s2us8ll0hdfefzpr43cdz2xmjzywmrkz0sc2uyegvzjwazr6f8 | [SOON_COMMITTEE - request 83](https://github.com/soonaverse/foundation/issues/83) | Bulk Buying feature
diff --git a/src/app/components/member/components/member-about/member-about.component.ts b/src/app/components/member/components/member-about/member-about.component.ts
index 15f2db9..6791b3c 100644
--- a/src/app/components/member/components/member-about/member-about.component.ts
+++ b/src/app/components/member/components/member-about/member-about.component.ts
@@ -63,7 +63,7 @@ export class MemberAboutComponent implements OnInit {
     this.drawerVisible$.next(false);
   }
 
-  public trackByUid(index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 }
diff --git a/src/app/pages/member/pages/activity/activity.page.ts b/src/app/pages/member/pages/activity/activity.page.ts
index 2df3e41..11f97b2 100644
--- a/src/app/pages/member/pages/activity/activity.page.ts
+++ b/src/app/pages/member/pages/activity/activity.page.ts
@@ -184,7 +184,7 @@ export class ActivityPage implements OnInit {
     return ['/', ROUTER_UTILS.config.space.root, spaceId];
   }
 
-  public trackByUid(index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 }
diff --git a/src/app/pages/member/pages/awards/awards.page.ts b/src/app/pages/member/pages/awards/awards.page.ts
index a4c0e1d..3cb6b2a 100644
--- a/src/app/pages/member/pages/awards/awards.page.ts
+++ b/src/app/pages/member/pages/awards/awards.page.ts
@@ -50,7 +50,7 @@ export class AwardsPage {
     return this.auth.isLoggedIn$;
   }
 
-  public trackByUid(index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 }
diff --git a/src/app/pages/member/pages/badges/badges.page.ts b/src/app/pages/member/pages/badges/badges.page.ts
index 73b7372..c10c07c 100644
--- a/src/app/pages/member/pages/badges/badges.page.ts
+++ b/src/app/pages/member/pages/badges/badges.page.ts
@@ -124,7 +124,7 @@ export class BadgesPage implements OnInit {
     return this.auth.isLoggedIn$;
   }
 
-  public trackByUid(index: number, item: Transaction) {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 }
diff --git a/src/app/pages/member/pages/member/member.page.ts b/src/app/pages/member/pages/member/member.page.ts
index 6043451..3a5994f 100644
--- a/src/app/pages/member/pages/member/member.page.ts
+++ b/src/app/pages/member/pages/member/member.page.ts
@@ -16,7 +16,7 @@ import { SeoService } from '@core/services/seo';
 import { ROUTER_UTILS } from '@core/utils/router.utils';
 import { UntilDestroy, untilDestroyed } from '@ngneat/until-destroy';
 import { FILE_SIZES, Member } from '@build-5/interfaces';
-import { BehaviorSubject, Subscription, skip } from 'rxjs';
+import { BehaviorSubject, Subscription, filter, map, skip } from 'rxjs';
 import { MemberApi } from './../../../../@api/member.api';
 import { NavigationService } from './../../../../@core/services/navigation/navigation.service';
 import { DataService } from './../../services/data.service';
@@ -104,6 +104,16 @@ export class MemberPage implements OnInit, OnDestroy {
   }
 
   public listenMember(memberId: string): void {
+    const isValidMemberId = typeof memberId === 'string' && /[a-zA-Z0-9]/.test(memberId);
+
+    if (!isValidMemberId) {
+      this.data.awardsCompleted$.next([]);
+      this.data.awardsPending$.next([]);
+      this.data.space$.next([]);
+      this.data.member$.next(undefined);
+      return;
+    }
+
     this.subscriptions$.push(
       this.memberApi
         .topAwardsCompleted(memberId)
@@ -118,19 +128,34 @@ export class MemberPage implements OnInit, OnDestroy {
     );
     // TODO Implement search. This is parked since we will be implementing new search here.
     this.subscriptions$.push(
-      this.memberApi.topSpaces(memberId).pipe(untilDestroyed(this)).subscribe(this.data.space$),
+      this.memberApi
+        .topSpaces(memberId)
+        .pipe(
+          untilDestroyed(this),
+          map((spaces) =>
+            spaces.filter(
+              (space) => space && typeof space.uid === 'string' && space.uid.trim() !== '',
+            ),
+          ),
+        )
+        .subscribe((filteredSpaces) => {
+          this.data.space$.next(filteredSpaces);
+        }),
     );
     this.subscriptions$.push(
       this.memberApi
         .listen(memberId)
-        .pipe(untilDestroyed(this))
-        .subscribe((v) => {
-          // Only pass next stage.
-          this.data.member$.next(v);
+        .pipe(
+          untilDestroyed(this),
+          filter((v) => v && typeof v.uid === 'string' && v.uid.trim() !== ''),
+        )
+        .subscribe((validMember) => {
+          // Only pass next stage if valid.
+          this.data.member$.next(validMember);
         }),
     );
 
-    // Badges.
+    // Continue with other actions if memberId is valid.
     this.data.refreshBadges();
   }
 
diff --git a/src/app/pages/member/pages/nfts/nfts.page.ts b/src/app/pages/member/pages/nfts/nfts.page.ts
index 3d76ac3..9f07f2d 100644
--- a/src/app/pages/member/pages/nfts/nfts.page.ts
+++ b/src/app/pages/member/pages/nfts/nfts.page.ts
@@ -75,8 +75,8 @@ export class NFTsPage implements OnInit {
     return this.auth.member$;
   }
 
-  public trackByUid(_index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 
   public convertAllToSoonaverseModel(algoliaItems: any[]) {
diff --git a/src/app/pages/member/pages/spaces/member-spaces.component.ts b/src/app/pages/member/pages/spaces/member-spaces.component.ts
index af34481..f383c53 100644
--- a/src/app/pages/member/pages/spaces/member-spaces.component.ts
+++ b/src/app/pages/member/pages/spaces/member-spaces.component.ts
@@ -49,7 +49,7 @@ export class MemberSpacesComponent implements OnInit {
     );
   }
 
-  public trackByUid(index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 }
diff --git a/src/app/pages/member/pages/tokens/tokens.page.ts b/src/app/pages/member/pages/tokens/tokens.page.ts
index 6a13fe8..98e1d25 100644
--- a/src/app/pages/member/pages/tokens/tokens.page.ts
+++ b/src/app/pages/member/pages/tokens/tokens.page.ts
@@ -289,8 +289,8 @@ export class TokensPage implements OnInit, OnDestroy {
     );
   }
 
-  public trackByUid(index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 
   public understandNotMintedWarning(): void {
diff --git a/src/app/pages/member/pages/transactions/transactions.page.ts b/src/app/pages/member/pages/transactions/transactions.page.ts
index dd547e2..9107dd6 100644
--- a/src/app/pages/member/pages/transactions/transactions.page.ts
+++ b/src/app/pages/member/pages/transactions/transactions.page.ts
@@ -201,8 +201,8 @@ export class TransactionsPage implements OnInit, OnDestroy {
       });
   }
 
-  public trackByUid(index: number, item: any): number {
-    return item.uid;
+  public trackByUid(index: number, item: any): any {
+    return item ? item.uid : index;
   }
 
   private cancelSubscriptions(): void {