diff --git a/addons/mail/static/src/components/message/message.js b/addons/mail/static/src/components/message/message.js
index 9ef597c5ac6..fffdee038bf 100644
--- a/addons/mail/static/src/components/message/message.js
+++ b/addons/mail/static/src/components/message/message.js
@@ -459,7 +459,9 @@ export class Message extends Component {
         this.messageView.message.refreshDateFromNow();
         clearInterval(this._intervalId);
         this._intervalId = setInterval(() => {
-            this.messageView.message.refreshDateFromNow();
+            if (this.messageView) {
+                this.messageView.message.refreshDateFromNow();
+            }
         }, 60 * 1000);
     }
 
diff --git a/addons/mail/static/src/models/rtc_call_participant_card/rtc_call_participant_card.js b/addons/mail/static/src/models/rtc_call_participant_card/rtc_call_participant_card.js
index fe8fab1371b..b3fcd9c8c14 100644
--- a/addons/mail/static/src/models/rtc_call_participant_card/rtc_call_participant_card.js
+++ b/addons/mail/static/src/models/rtc_call_participant_card/rtc_call_participant_card.js
@@ -77,7 +77,7 @@ function factory(dependencies) {
                 return `/mail/channel/${this.channel.id}/partner/${this.invitedPartner.id}/avatar_128`;
             }
             if (this.invitedGuest) {
-                return `/mail/channel/${this.channel.id}/guest/${this.invitedGuest.id}/avatar_128`;
+                return `/mail/channel/${this.channel.id}/guest/${this.invitedGuest.id}/avatar_128?unique=${this.invitedGuest.name}`;
             }
         }
 
diff --git a/addons/mail/static/src/models/rtc_session/rtc_session.js b/addons/mail/static/src/models/rtc_session/rtc_session.js
index e7b6c6637d0..1495d7d6b45 100644
--- a/addons/mail/static/src/models/rtc_session/rtc_session.js
+++ b/addons/mail/static/src/models/rtc_session/rtc_session.js
@@ -205,7 +205,7 @@ function factory(dependencies) {
                 return `/mail/channel/${this.channel.id}/partner/${this.partner.id}/avatar_128`;
             }
             if (this.guest) {
-                return `/mail/channel/${this.channel.id}/guest/${this.guest.id}/avatar_128`;
+                return `/mail/channel/${this.channel.id}/guest/${this.guest.id}/avatar_128?unique=${this.guest.name}`;
             }
         }