diff --git a/src/bp-groups/bp-groups-activity.php b/src/bp-groups/bp-groups-activity.php
index f4ae97d1452..64448dfa51a 100644
--- a/src/bp-groups/bp-groups-activity.php
+++ b/src/bp-groups/bp-groups-activity.php
@@ -482,10 +482,11 @@ function groups_record_activity( $args = '' ) {
 				}
 			}
 
+			
 			$args = array(
 				'id'                => $activity->id,
 				'action'            => ! empty( $args['action'] ) ? $args['action'] : $activity->action,
-				'post_title'        => ! empty( $args['post_title'] ) ? $args['post_title'] : $activity->post_title,
+				'post_title'		=> ! empty( $args['post_title'] ) ? $args['post_title'] : ( ! empty( $args['post_title_cleared'] ) ? '' : $activity->post_title ),
 				'title_required'    => ! empty( $args['title_required'] ) ? $args['title_required'] : $activity->title_required,
 				'content'           => ! empty( $args['content'] ) ? $args['content'] : '',
 				'component'         => $activity->component,
diff --git a/src/bp-groups/bp-groups-functions.php b/src/bp-groups/bp-groups-functions.php
index 32098cbe361..843f8f068b2 100644
--- a/src/bp-groups/bp-groups-functions.php
+++ b/src/bp-groups/bp-groups-functions.php
@@ -1767,16 +1767,17 @@ function groups_post_update( $args = '' ) {
 	$r = bp_parse_args(
 		$args,
 		array(
-			'id'             => false,
-			'post_title'     => false,
-			'title_required' => function_exists( 'bb_is_activity_post_title_enabled' ) ? bb_is_activity_post_title_enabled() : false,
-			'content'        => false,
-			'user_id'        => bp_loggedin_user_id(),
-			'group_id'       => 0,
-			'privacy'        => 'public',
-			'error_type'     => 'bool',
-			'status'         => bb_get_activity_published_status(),
-			'recorded_time'  => bp_core_current_time(),
+			'id'                  => false,
+			'post_title'          => false,
+			'post_title_cleared'  => false,
+			'title_required'      => function_exists( 'bb_is_activity_post_title_enabled' ) ? bb_is_activity_post_title_enabled() : false,
+			'content'             => false,
+			'user_id'             => bp_loggedin_user_id(),
+			'group_id'            => 0,
+			'privacy'             => 'public',
+			'error_type'          => 'bool',
+			'status'              => bb_get_activity_published_status(),
+			'recorded_time'       => bp_core_current_time(),
 		),
 		'groups_post_update'
 	);
@@ -1830,22 +1831,24 @@ function groups_post_update( $args = '' ) {
 	 */
 	$post_title_filtered = apply_filters( 'bb_groups_activity_new_update_post_title', $post_title );
 
-	$activity_id = groups_record_activity(
-		array(
-			'id'             => $id,
-			'user_id'        => $user_id,
-			'action'         => $action,
-			'post_title'     => $post_title_filtered,
-			'title_required' => $r['title_required'],
-			'content'        => $content_filtered,
-			'type'           => 'activity_update',
-			'item_id'        => $group_id,
-			'privacy'        => $privacy,
-			'error_type'     => $error_type,
-			'status'         => $status,
-			'recorded_time'  => $recorded_time,
-		)
+	$record_args = array(
+		'id'             => $id,
+		'user_id'        => $user_id,
+		'action'         => $action,
+		'post_title'     => $post_title_filtered,
+		'title_required' => $r['title_required'],
+		'content'        => $content_filtered,
+		'type'           => 'activity_update',
+		'item_id'        => $group_id,
+		'privacy'        => $privacy,
+		'error_type'     => $error_type,
+		'status'         => $status,
+		'recorded_time'  => $recorded_time,
 	);
+	if ( ! empty( $r['post_title_cleared'] ) ) {
+		$record_args['post_title_cleared'] = 1;
+	}
+	$activity_id = groups_record_activity( $record_args );
 
 	groups_update_groupmeta( $group_id, 'last_activity', bp_core_current_time() );
 
diff --git a/src/bp-templates/bp-nouveau/includes/activity/ajax.php b/src/bp-templates/bp-nouveau/includes/activity/ajax.php
index 561043baef7..4aff246a32b 100644
--- a/src/bp-templates/bp-nouveau/includes/activity/ajax.php
+++ b/src/bp-templates/bp-nouveau/includes/activity/ajax.php
@@ -784,7 +784,10 @@ function_exists( 'bb_pro_activity_post_feature_image_instance' )
 		}
 	}
 
-	$post_title = ! empty( $_POST['post_title'] ) ? sanitize_text_field( wp_unslash( $_POST['post_title'] ) ) : '';
+	$post_title = isset( $_POST['post_title'] ) ? sanitize_text_field( wp_unslash( $_POST['post_title'] ) ) : ( isset( $_POST['whats-new-title'] ) ? sanitize_text_field( wp_unslash( $_POST['whats-new-title'] ) ) : '' );
+	if ( ! empty( $_POST['id'] ) && ! empty( $_POST['post_title_cleared'] ) ) {
+		$post_title = '';
+	}
 	$validation = bb_validate_activity_post_title( $post_title );
 	if ( ! $validation['valid'] ) {
 		wp_send_json_error(
@@ -1060,6 +1063,10 @@ function_exists( 'bb_pro_activity_post_feature_image_instance' )
 				'group_id'   => $item_id,
 			);
 
+			if ( ! empty( $_POST['post_title_cleared'] ) ) {
+				$post_array['post_title_cleared'] = 1;
+			}
+
 			if ( $is_scheduled ) {
 				$post_array['recorded_time'] = $schedule_date_time;
 				$post_array['status']        = $activity_status;
diff --git a/src/bp-templates/bp-nouveau/js/buddypress-activity-post-form.js b/src/bp-templates/bp-nouveau/js/buddypress-activity-post-form.js
index 2804b67c2c9..8ba3f2467ed 100644
--- a/src/bp-templates/bp-nouveau/js/buddypress-activity-post-form.js
+++ b/src/bp-templates/bp-nouveau/js/buddypress-activity-post-form.js
@@ -1233,10 +1233,8 @@ window.bp = window.bp || {};
 
 			self.postForm.model.set( 'content', content, {silent: true} );
 
-			var activityPostTitle = self.postForm.$el.find( '#whats-new-title' ).val();
-			if ( activityPostTitle ) {
-				self.postForm.model.set( 'post_title', activityPostTitle, {silent: true} );
-			}
+			var activityPostTitle = self.postForm.$el.find( '#whats-new-title' ).val() || '';
+			self.postForm.model.set( 'post_title', activityPostTitle, {silent: true} );
 
 			// Silently add meta.
 			self.postForm.model.set( meta, {silent: true} );
@@ -6148,7 +6146,9 @@ window.bp = window.bp || {};
 
 			postUpdate: function ( event ) {
 				var self = this,
-					meta = {}, edit = false;
+					meta = { post_title: '' },
+					edit = false,
+					$form = ( event && event.target && $( event.target ).is( 'form' ) ) ? $( event.target ) : self.$el;
 
 				if ( event ) {
 					if ( 'keydown' === event.type && ( 13 !== event.keyCode || ! event.ctrlKey ) ) {
@@ -6161,14 +6161,18 @@ window.bp = window.bp || {};
 				// unset all errors before submit.
 				self.model.unset( 'errors' );
 
-				// Set the content and meta.
+				// Set the content and meta from the submitted form.
 				_.each(
-					self.$el.serializeArray(),
+					$form.serializeArray(),
 					function ( pair ) {
 						pair.name = pair.name.replace( '[]', '' );
 						if ( pair.name.startsWith( 'bb-poll-question-option[' ) ) {
 							pair.name = pair.name.replace( /\[\d+\]/, '' );
 						}
+						if ( 'whats-new-title' === pair.name || 'bb-rl-whats-new-title' === pair.name ) {
+							meta.post_title = ( pair.value || '' ).trim();
+							return;
+						}
 						if ( -1 === _.indexOf( [ 'aw-whats-new-submit', 'whats-new-post-in', 'bb-schedule-activity-date-field', 'bb-schedule-activity-meridian', 'bb-schedule-activity-time-field', 'bb-poll-question-field', 'bb-poll-duration', 'bb-poll-question-option', 'bb-poll-allow-multiple-answer', 'bb-poll-allow-new-option', 'whats-new-title' ], pair.name ) ) {
 							if ( _.isUndefined( meta[ pair.name ] ) ) {
 								meta[ pair.name ] = pair.value;
@@ -6184,7 +6188,7 @@ window.bp = window.bp || {};
 				);
 
 				// Post content.
-				var $whatsNew = self.$el.find( '#whats-new' );
+				var $whatsNew = $form.find( '#whats-new' );
 
 				var atwho_query = $whatsNew.find( 'span.atwho-query' );
 				for ( var i = 0; i < atwho_query.length; i++ ) {
@@ -6214,19 +6218,15 @@ window.bp = window.bp || {};
 
 				self.model.set( 'content', content, { silent: true } );
 
-				var activityPostTitle = self.$el.find( '#whats-new-title' );
-				if ( self.$el.find( '#bb-rl-whats-new-title' ).length ) {
-					activityPostTitle = self.$el.find( '#bb-rl-whats-new-title' );
-				}
-				if ( activityPostTitle.length && activityPostTitle.val() !== '' ) {
-					activityPostTitle = activityPostTitle.val();
+				var activityPostTitle = $form.find( '#bb-rl-whats-new-title' ).length ? $form.find( '#bb-rl-whats-new-title' ).val() || '' : $form.find( '#whats-new-title' ).val() || '';
+				if ( activityPostTitle.length > 0 ) {
 					var maxPostTitleLength = BP_Nouveau.activity.params.activity_post_title_maxlength;
 					// Maximum 80 characters allowed.
 					if ( activityPostTitle.length > maxPostTitleLength ) {
 						activityPostTitle = activityPostTitle.slice( 0, maxPostTitleLength );
 					}
-					self.model.set( 'post_title', activityPostTitle, { silent: true } );
 				}
+				self.model.set( 'post_title', activityPostTitle, { silent: true } );
 
 				// Silently add meta.
 				self.model.set( meta, { silent: true } );
@@ -6381,6 +6381,20 @@ window.bp = window.bp || {};
 					}
 				);
 
+				// Force post_title from visible input right before send - ensures cleared title is always sent.
+				var $titleEl = $form.find( 'input.whats-new-title, input#whats-new-title, input.bb-rl-whats-new-title, input#bb-rl-whats-new-title' ).first();
+				if ( ! $titleEl.length ) {
+					$titleEl = $( 'input.whats-new-title, input#whats-new-title, input.bb-rl-whats-new-title, input#bb-rl-whats-new-title' ).filter( ':visible' ).first();
+				}
+				data.post_title = $titleEl.length ? ( $titleEl.val() || '' ).trim() : ( meta.post_title || '' );
+				if ( data.post_title.length > 0 && BP_Nouveau.activity.params.activity_post_title_maxlength ) {
+					data.post_title = data.post_title.slice( 0, BP_Nouveau.activity.params.activity_post_title_maxlength );
+				}
+				// Explicit flag when user cleared title during edit - ensures empty is saved even if empty params are stripped.
+				if ( edit && data.post_title.length === 0 ) {
+					data.post_title_cleared = 1;
+				}
+
 				bp.ajax.post( 'post_update', data ).done(
 					function ( response ) {
 
diff --git a/src/bp-templates/bp-nouveau/readylaunch/js/buddypress-activity-post-form.js b/src/bp-templates/bp-nouveau/readylaunch/js/buddypress-activity-post-form.js
index ecf87e5d3b1..942371aa8d5 100644
--- a/src/bp-templates/bp-nouveau/readylaunch/js/buddypress-activity-post-form.js
+++ b/src/bp-templates/bp-nouveau/readylaunch/js/buddypress-activity-post-form.js
@@ -1011,10 +1011,8 @@ window.bp = window.bp || {};
 
 			self.postForm.model.set( 'content', content, {silent: true} );
 
-			var activityPostTitle = self.postForm.$el.find( '#bb-rl-whats-new-title' ).val();
-			if ( activityPostTitle ) {
-				self.postForm.model.set( 'post_title', activityPostTitle, {silent: true} );
-			}
+			var activityPostTitle = self.postForm.$el.find( '#bb-rl-whats-new-title' ).val() || '';
+			self.postForm.model.set( 'post_title', activityPostTitle, {silent: true} );
 
 			// Silently add meta.
 			self.postForm.model.set( meta, {silent: true} );
@@ -5458,16 +5456,15 @@ window.bp = window.bp || {};
 
 				self.model.set( 'content', content, { silent: true } );
 
-				var postTitle = self.$el.find( '#bb-rl-whats-new-title' );
-				if ( postTitle.length && postTitle.val() !== '' ) {
-					postTitle = postTitle.val();
+				var postTitle = self.$el.find( '#bb-rl-whats-new-title' ).val() || '';
+				if ( postTitle.length > 0 ) {
 					var maxPostTitleLength = BP_Nouveau.activity.params.activity_post_title_maxlength;
 					// Maximum 80 characters allowed.
 					if ( postTitle.length > maxPostTitleLength ) {
 						postTitle = postTitle.slice( 0, maxPostTitleLength );
 					}
-					self.model.set( 'post_title', postTitle, { silent: true } );
 				}
+				self.model.set( 'post_title', postTitle, { silent: true } );
 
 				// Silently add meta.
 				self.model.set( meta, { silent: true } );
@@ -5629,6 +5626,21 @@ window.bp = window.bp || {};
 					}
 				);
 
+				// Force post_title from visible input right before send - ensures cleared title is always sent.
+				var $form    = ( event && event.target && $( event.target ).is( 'form' ) ) ? $( event.target ) : self.$el;
+				var $titleEl = $form.find( 'input#bb-rl-whats-new-title, input.bb-rl-whats-new-title' ).first();
+				if ( ! $titleEl.length ) {
+					$titleEl = $( 'input#bb-rl-whats-new-title, input.bb-rl-whats-new-title' ).filter( ':visible' ).first();
+				}
+				data.post_title = $titleEl.length ? ( $titleEl.val() || '' ).trim() : ( self.model.get( 'post_title' ) || '' );
+				if ( data.post_title.length > 0 && BP_Nouveau.activity.params.activity_post_title_maxlength ) {
+					data.post_title = data.post_title.slice( 0, BP_Nouveau.activity.params.activity_post_title_maxlength );
+				}
+				// Explicit flag when user cleared title during edit - ensures empty is saved even if empty params are stripped.
+				if ( edit && data.post_title.length === 0 ) {
+					data.post_title_cleared = 1;
+				}
+
 				bp.ajax.post( 'post_update', data ).done(
 					function ( response ) {