diff --git a/bin/run-detectors-timelines.sh b/bin/run-detectors-timelines.sh
index 2b37cd43..0907b481 100755
--- a/bin/run-detectors-timelines.sh
+++ b/bin/run-detectors-timelines.sh
@@ -167,7 +167,7 @@ detDirs=(
   helicity
   htcc
   ltcc
-  m2_ctof_ftof
+  # m2_ctof_ftof
   rf
   rich
   trigger
@@ -243,9 +243,9 @@ if ${modes['focus-all']} || ${modes['focus-timelines']}; then
       fth)    mv $timelineFile ft/      ;;
       rat)    mv $timelineFile trigger/ ;;
       rftime) mv $timelineFile rf/      ;;
-      ctof|ftof)
-        [[ "$timelineFile" =~ _m2_ ]] && mv $timelineFile m2_ctof_ftof/ || mv $timelineFile $det/
-        ;;
+      # ctof|ftof)
+      #   [[ "$timelineFile" =~ _m2_ ]] && mv $timelineFile m2_ctof_ftof/ || mv $timelineFile $det/
+      #   ;;
       *)
         if [ -d $det ]; then
           mv $timelineFile $det/
diff --git a/detectors/src/main/java/org/jlab/clas/timeline/fitter/FTOFFitter_mass.groovy b/detectors/src/main/java/org/jlab/clas/timeline/fitter/FTOFFitter_mass.groovy
index f1848459..7d25b098 100644
--- a/detectors/src/main/java/org/jlab/clas/timeline/fitter/FTOFFitter_mass.groovy
+++ b/detectors/src/main/java/org/jlab/clas/timeline/fitter/FTOFFitter_mass.groovy
@@ -33,4 +33,4 @@ class FTOFFitter_mass {
 
   }
 
-}
\ No newline at end of file
+}
diff --git a/detectors/src/main/java/org/jlab/clas/timeline/run_detectors.groovy b/detectors/src/main/java/org/jlab/clas/timeline/run_detectors.groovy
index b4069213..4830ce87 100644
--- a/detectors/src/main/java/org/jlab/clas/timeline/run_detectors.groovy
+++ b/detectors/src/main/java/org/jlab/clas/timeline/run_detectors.groovy
@@ -75,8 +75,9 @@ def engines = [
   out_CTOF: [new ctof.ctof_edep(),
     new ctof.ctof_time(),
     new ctof.ctof_tdcadc(),
-    new particle_mass_ctof_and_ftof.ctof_m2_pim(),
-    new particle_mass_ctof_and_ftof.ctof_m2_pip()],
+    // new particle_mass_ctof_and_ftof.ctof_m2_pim(), // not needed, according to D. Carman
+    // new particle_mass_ctof_and_ftof.ctof_m2_pip(),
+  ],
   out_FT: [new ft.ftc_pi0_mass(),
     new ft.ftc_time_charged(),
     new ft.ftc_time_neutral(),
@@ -101,8 +102,8 @@ def engines = [
     new ftof.ftof_time_p1a(),
     new ftof.ftof_time_p1b(),
     new ftof.ftof_time_p2(),
-    new ftof.ftof_time_noTriggers_p1a(),
-    new ftof.ftof_time_noTriggers_p1b(),
+    // new ftof.ftof_time_noTriggers_p1a(), // not needed, according to D. Carman
+    // new ftof.ftof_time_noTriggers_p1b(),
     new ftof.ftof_tdcadc_p1a(),
     new ftof.ftof_tdcadc_p1b(),
     new ftof.ftof_tdcadc_p2(),
@@ -131,12 +132,12 @@ def engines = [
        new rich.rich_npbar_m()],
   out_HELICITY: [new helicity.helicity()],
   out_TRIGGER: [new trigger.trigger()],
-  dst_mon: [new particle_mass_ctof_and_ftof.ftof_m2_p1a_pim(),
-    new particle_mass_ctof_and_ftof.ftof_m2_p1a_pip(),
-    new particle_mass_ctof_and_ftof.ftof_m2_p1a_prot(),
-    new particle_mass_ctof_and_ftof.ftof_m2_p1b_pim(),
-    new particle_mass_ctof_and_ftof.ftof_m2_p1b_pip(),
-    new particle_mass_ctof_and_ftof.ftof_m2_p1b_prot()],
+  // dst_mon: [new particle_mass_ctof_and_ftof.ftof_m2_p1a_pim(), // not needed, according to D. Carman
+  //   new particle_mass_ctof_and_ftof.ftof_m2_p1a_pip(),
+  //   new particle_mass_ctof_and_ftof.ftof_m2_p1a_prot(),
+  //   new particle_mass_ctof_and_ftof.ftof_m2_p1b_pim(),
+  //   new particle_mass_ctof_and_ftof.ftof_m2_p1b_pip(),
+  //   new particle_mass_ctof_and_ftof.ftof_m2_p1b_prot()],
 ]
 
 
diff --git a/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pim.groovy b/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pim.groovy
index bff2f317..467ca114 100644
--- a/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pim.groovy
+++ b/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pim.groovy
@@ -9,6 +9,9 @@ class ftof_m2_p1b_pim {
 def data = new ConcurrentHashMap()
 
 def processDirectory(dir, run) {
+  if(run == 19692) {
+    throw new Exception("the fit for run ${run} may stall; this timeline is supposed to be disabled as of Oct. 2nd 2024, but if you see this message, contact the maintainers")
+  }
   def funclist = []
   def meanlist = []
   def sigmalist = []
diff --git a/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pip.groovy b/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pip.groovy
index 4566d6ad..2f21e827 100644
--- a/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pip.groovy
+++ b/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_pip.groovy
@@ -9,6 +9,9 @@ class ftof_m2_p1b_pip {
 def data = new ConcurrentHashMap()
 
 def processDirectory(dir, run) {
+  if(run == 19692) {
+    throw new Exception("the fit for run ${run} may stall; this timeline is supposed to be disabled as of Oct. 2nd 2024, but if you see this message, contact the maintainers")
+  }
   def funclist = []
   def meanlist = []
   def sigmalist = []
diff --git a/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_prot.groovy b/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_prot.groovy
index 8f8c4093..159f0787 100644
--- a/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_prot.groovy
+++ b/detectors/src/main/java/org/jlab/clas/timeline/timeline/particle_mass_ctof_and_ftof/ftof_m2_p1b_prot.groovy
@@ -9,6 +9,9 @@ class ftof_m2_p1b_prot {
 def data = new ConcurrentHashMap()
 
 def processDirectory(dir, run) {
+  if(run == 19692) {
+    throw new Exception("the fit for run ${run} may stall; this timeline is supposed to be disabled as of Oct. 2nd 2024, but if you see this message, contact the maintainers")
+  }
   def funclist = []
   def meanlist = []
   def sigmalist = []