diff --git a/ChangeLog b/ChangeLog
index 5d05e910..600aaa2b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22532,3 +22532,7 @@
 	platform styling hints.
 	* Modified the marker readouts in rdlibrary(1) so as to better respect
 	platform styling hints.
+2021-10-26 Fred Gleason <fredg@paravelsystems.com>
+	* Fixed a regression in rdairplay(1) that caused the 'shadow' of the
+	Button Log events to fail to be reflected in the 'Main Log' Full Log
+	widget.
diff --git a/lib/rdlogplay.cpp b/lib/rdlogplay.cpp
index 19be8af5..0de8cd6c 100644
--- a/lib/rdlogplay.cpp
+++ b/lib/rdlogplay.cpp
@@ -63,6 +63,7 @@ RDLogPlay::RDLogPlay(int id,RDEventPlayer *player,QObject *parent)
   play_rescan_pos=0;
   play_refreshable=false;
   play_audition_preroll=rda->airplayConf()->auditionPreroll();
+  play_slot_quantity=1;
   for(int i=0;i<LOGPLAY_MAX_PLAYS;i++) {
     play_slot_id[i]=i;
   }
@@ -1403,6 +1404,18 @@ bool RDLogPlay::isRefreshable() const
 }
 
 
+void RDLogPlay::setSlotQuantity(int slot_quan)
+{
+  if(slot_quan!=play_slot_quantity) {
+    play_slot_quantity=slot_quan;
+    QVector<int> roles;
+    roles.push_back(Qt::BackgroundRole);
+    emit dataChanged(createIndex(play_next_line,0),
+		     createIndex(play_next_line+play_slot_quantity-1,columnCount()),roles);
+  }
+}
+
+
 void RDLogPlay::transTimerData()
 {
   int lines[TRANSPORT_QUANTITY];
@@ -1846,7 +1859,8 @@ QColor RDLogPlay::rowBackgroundColor(int row,RDLogLine *ll) const
 	return LOG_ERROR_COLOR;
       }
       else {
-	if((play_next_line>=0)&&(play_next_line==row)) {
+	if((play_next_line>=0)&&(play_slot_quantity>0)&&
+	   (row>=play_next_line)&&(row<(play_next_line+play_slot_quantity-1))) {
 	  if(ll->evergreen()) {
 	    return LOG_EVERGREEN_COLOR;
 	  }
@@ -2839,7 +2853,8 @@ void RDLogPlay::ChangeTransport()
   emit transportChanged();
   if(play_next_line>=0) {
     emit dataChanged(createIndex(play_next_line,0),
-		     createIndex(play_next_line+6,columnCount()));
+		     createIndex(play_next_line+play_slot_quantity-1,
+				 columnCount()));
   }
 }
 
diff --git a/lib/rdlogplay.h b/lib/rdlogplay.h
index 130f28c5..6b6aff0b 100644
--- a/lib/rdlogplay.h
+++ b/lib/rdlogplay.h
@@ -110,6 +110,9 @@ class RDLogPlay : public RDLogModel
   void resync();
   bool isRefreshable() const;
 
+ public slots:
+  void setSlotQuantity(int slot_quan);
+
  private slots:
   void transTimerData();
   void graceTimerData();
@@ -253,6 +256,7 @@ class RDLogPlay : public RDLogModel
   RDEventPlayer *play_event_player;
   RDUnixSocket *play_pad_socket;
   bool play_hours[24];
+  int play_slot_quantity;
 };
 
 
diff --git a/rdairplay/button_log.cpp b/rdairplay/button_log.cpp
index 73f00ad4..beb1e951 100644
--- a/rdairplay/button_log.cpp
+++ b/rdairplay/button_log.cpp
@@ -32,6 +32,7 @@ ButtonLog::ButtonLog(RDLogPlay *log,int id,RDAirPlayConf *conf,bool allow_pause,
   log_action_mode=RDAirPlayConf::Normal;
   log_op_mode=RDAirPlayConf::LiveAssist;
   log_pause_enabled=allow_pause;
+  log_slot_quantity=0;
 
   //
   // Set Mappings
@@ -277,6 +278,12 @@ void ButtonLog::setActionMode(RDAirPlayConf::ActionMode mode,int *cartnum)
 }
 
 
+int ButtonLog::slotQuantity() const
+{
+  return log_slot_quantity;
+}
+
+
 PieCounter *ButtonLog::pieCounterWidget() const
 {
   return log_pie_counter_widget;
@@ -499,6 +506,7 @@ void ButtonLog::resizeEvent(QResizeEvent *e)
 				     LOGLINEBOX_FULL_HEIGHT);
   }
 
+  int slot_quantity=BUTTON_PLAY_BUTTONS;
   QRect viewport=QRect(0,0,size().width(),size().height());
   for(int i=BUTTON_PLAY_BUTTONS;i<BUTTON_TOTAL_BUTTONS;i++) {
     log_line_box[i]->setGeometry(10+85,
@@ -515,6 +523,13 @@ void ButtonLog::resizeEvent(QResizeEvent *e)
       viewport.contains(log_start_button[i]->geometry());
     log_line_box[i]->setVisible(visible);
     log_start_button[i]->setVisible(visible);
+    if(visible) {
+      slot_quantity++;
+    }
+  }
+  if(slot_quantity!=log_slot_quantity) {
+    log_slot_quantity=slot_quantity;
+    emit slotQuantityChanged(log_slot_quantity);
   }
 }
 
diff --git a/rdairplay/button_log.h b/rdairplay/button_log.h
index adcb5434..f0b94965 100644
--- a/rdairplay/button_log.h
+++ b/rdairplay/button_log.h
@@ -48,6 +48,7 @@ class ButtonLog : public RDWidget
   void setOpMode(RDAirPlayConf::OpMode mode);
   RDAirPlayConf::ActionMode actionMode() const;
   void setActionMode(RDAirPlayConf::ActionMode mode,int *cartnum=0);
+  int slotQuantity() const;
   PieCounter *pieCounterWidget() const;
   PostCounter *postCounterWidget() const;
   StopCounter *stopCounterWidget() const;
@@ -74,6 +75,7 @@ class ButtonLog : public RDWidget
  signals:
   void selectClicked(int id,int line,RDLogLine::Status);
   void cartDropped(int id,int line,RDLogLine *ll);
+  void slotQuantityChanged(int slots);
 
  private:
   void UpdateEvents();
@@ -85,6 +87,7 @@ class ButtonLog : public RDWidget
   RDAirPlayConf::ActionMode log_action_mode;
   LogLineBox *log_line_box[BUTTON_TOTAL_BUTTONS];
   StartButton *log_start_button[BUTTON_TOTAL_BUTTONS];
+  int log_slot_quantity;
   int log_line_counter;
   EditEvent *log_event_edit;
   bool log_pause_enabled;
diff --git a/rdairplay/rdairplay.cpp b/rdairplay/rdairplay.cpp
index 775c72d8..539b0ac4 100644
--- a/rdairplay/rdairplay.cpp
+++ b/rdairplay/rdairplay.cpp
@@ -698,6 +698,8 @@ MainWidget::MainWidget(RDConfig *config,QWidget *parent)
 	  air_button_list->stopCounterWidget(),SLOT(tickCounter()));
   connect(air_log[0],SIGNAL(nextStopChanged(QTime)),
 	  air_button_list->stopCounterWidget(),SLOT(setTime(QTime)));
+  connect(air_button_list,SIGNAL(slotQuantityChanged(int)),
+	  air_log[0],SLOT(setSlotQuantity(int)));
 
   //
   // Set Startup Mode