diff --git a/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceActiveSpeakerView.swift b/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceActiveSpeakerView.swift
index 723d3f007..aa4cbc813 100644
--- a/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceActiveSpeakerView.swift
+++ b/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceActiveSpeakerView.swift
@@ -90,6 +90,9 @@ class VoipConferenceActiveSpeakerView: UIView, UICollectionViewDataSource, UICol
 	}
 	
 	func reloadData() {
+		conferenceViewModel?.conferenceParticipantDevices.value?.forEach {
+			$0.clearObservers()
+		}
 		self.grid.reloadData()
 	}
 			
diff --git a/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceGridView.swift b/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceGridView.swift
index d2394bec1..f8d863e5f 100644
--- a/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceGridView.swift
+++ b/Classes/Swift/Voip/Views/Fragments/Conference/VoipConferenceGridView.swift
@@ -174,6 +174,9 @@ class VoipConferenceGridView: UIView, UICollectionViewDataSource, UICollectionVi
 	// UICollectionView related delegates
 	
 	func reloadData() {
+		conferenceViewModel?.conferenceParticipantDevices.value?.forEach {
+			$0.clearObservers()
+		}		
 		if (self.isHidden || conferenceViewModel?.conference.value?.call?.params?.conferenceVideoLayout != .Grid) {
 			self.grid.reloadData()
 			return