diff --git a/DCCACK.cpp b/DCCACK.cpp
index 64dafa3..d6b070e 100644
--- a/DCCACK.cpp
+++ b/DCCACK.cpp
@@ -67,6 +67,10 @@ CALLBACK_STATE DCCACK::callbackState=READY;
 ACK_CALLBACK DCCACK::ackManagerCallback;
 
 void  DCCACK::Setup(int cv, byte byteValueOrBitnum, ackOp const program[], ACK_CALLBACK callback) {
+  // On ESP32 the joined track is hidden from sight (it has type MAIN)
+  // and because of that we need first check if track was joined and
+  // then unjoin if necessary. This requires that the joined flag is
+  // cleared when the prog track is removed.
   ackManagerRejoin=TrackManager::isJoined();
   if (ackManagerRejoin) {
     // Change from JOIN must zero resets packet.
diff --git a/IODevice.h b/IODevice.h
index 7be84fd..08b7370 100644
--- a/IODevice.h
+++ b/IODevice.h
@@ -38,6 +38,7 @@
 #include "FSH.h"
 #include "I2CManager.h"
 #include "inttypes.h"
+#include "TemplateForEnums.h"
 
 typedef uint16_t VPIN;
 // Limit VPIN number to max 32767.  Above this number, printing often gives negative values.
diff --git a/MotorDriver.h b/MotorDriver.h
index 269fee7..f1d52f7 100644
--- a/MotorDriver.h
+++ b/MotorDriver.h
@@ -28,12 +28,9 @@
 #include "DCCTimer.h"
 #include <wiring_private.h>
 
+#include "TemplateForEnums.h"
 // use powers of two so we can do logical and/or on the track modes in if clauses.
 // For example TRACK_MODE_DC_INV is (TRACK_MODE_DC|TRACK_MODIFIER_INV)
-template<class T> inline T operator~ (T a) { return (T)~(int)a; }
-template<class T> inline T operator| (T a, T b) { return (T)((int)a | (int)b); }
-template<class T> inline T operator& (T a, T b) { return (T)((int)a & (int)b); }
-template<class T> inline T operator^ (T a, T b) { return (T)((int)a ^ (int)b); }
 enum TRACK_MODE : byte {
   // main modes
   TRACK_MODE_NONE = 1, TRACK_MODE_MAIN = 2, TRACK_MODE_PROG = 4,
diff --git a/TemplateForEnums.h b/TemplateForEnums.h
new file mode 100644
index 0000000..459568d
--- /dev/null
+++ b/TemplateForEnums.h
@@ -0,0 +1,26 @@
+/*
+ *  © 2024, Harald Barth. All rights reserved.
+ *  
+ *  This file is part of DCC-EX
+ *
+ *  This is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  It is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with CommandStation.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef TemplateForEnums
+#define TemplateForEnums
+template<class T> inline T operator~ (T a) { return (T)~(int)a; }
+template<class T> inline T operator| (T a, T b) { return (T)((int)a | (int)b); }
+template<class T> inline T operator& (T a, T b) { return (T)((int)a & (int)b); }
+template<class T> inline T operator^ (T a, T b) { return (T)((int)a ^ (int)b); }
+#endif
+
diff --git a/TrackManager.cpp b/TrackManager.cpp
index b4863bc..5ada17b 100644
--- a/TrackManager.cpp
+++ b/TrackManager.cpp
@@ -246,9 +246,6 @@ bool TrackManager::setTrackMode(byte trackToSet, TRACK_MODE mode, int16_t dcAddr
 #endif
 #ifndef DISABLE_PROG
     if (mode & TRACK_MODE_PROG) {
-#else
-    if (false) {
-#endif
       // only allow 1 track to be prog
       FOR_EACH_TRACK(t)
 	if ( (track[t]->getMode() & TRACK_MODE_PROG) && t != trackToSet) {
@@ -261,6 +258,7 @@ bool TrackManager::setTrackMode(byte trackToSet, TRACK_MODE mode, int16_t dcAddr
     } else {
       track[trackToSet]->makeProgTrack(false); // only the prog track knows it's type
     }
+#endif
 
     // When a track is switched, we must clear any side effects of its previous 
     // state, otherwise trains run away or just dont move.
@@ -363,6 +361,12 @@ bool TrackManager::setTrackMode(byte trackToSet, TRACK_MODE mode, int16_t dcAddr
       track[trackToSet]->setPower(POWERMODE::OFF);
     streamTrackState(NULL,trackToSet);
 
+#ifndef DISABLE_PROG
+    // If no prog track exists, the join flag should not say that
+    // the prog track is joined either, so clear flag here
+    if (getProgDriver() == NULL) progTrackSyncMain=false;
+#endif
+
     //DIAG(F("TrackMode=%d"),mode);
     return true; 
 }