diff --git a/PWGMM/Lumi/Tasks/lumiStabilityPP.cxx b/PWGMM/Lumi/Tasks/lumiStabilityPP.cxx
index 9c02539d7d2..ee01dab084b 100644
--- a/PWGMM/Lumi/Tasks/lumiStabilityPP.cxx
+++ b/PWGMM/Lumi/Tasks/lumiStabilityPP.cxx
@@ -190,7 +190,7 @@ struct LumiStabilityPP {
           histBcVsTime[iTrigger][iBCCategory][runNumber] = registry.add<TH1>(Form("%d/%s", runNumber, std::string(NBCsVsTimeHistNames[iTrigger][iBCCategory]).c_str()), "Time of triggered BCs since the start of fill;#bf{t-t_{SOF} (min)};#bf{#it{N}_{BC}}", HistType::kTH1D, {timeAxis});
           histBcVsBcId[iTrigger][iBCCategory][runNumber] = registry.add<TH1>(Form("%d/%s", runNumber, std::string(NBCsVsBCIDHistNames[iTrigger][iBCCategory]).c_str()), "BC ID of triggered BCs;#bf{BC ID in orbit};#bf{#it{N}_{BC}}", HistType::kTH1D, {bcIDAxis});
           if (iBCCategory != BCSL) { // we do not do it for superleading because it is not easy to define the number of inspected BCs
-            histMu[iTrigger][iBCCategory][runNumber] = registry.add<TH1>(Form("%d/%s", runNumber, std::string(MuHistNames[iTrigger][iBCCategory]).c_str()), "pile-up #mu of different triggers;#mu;counts", HistType::kTH1D, {{500, 0., 0.1}});
+            histMu[iTrigger][iBCCategory][runNumber] = registry.add<TH1>(Form("%d/%s", runNumber, std::string(MuHistNames[iTrigger][iBCCategory]).c_str()), "pile-up #mu of different triggers;#mu;counts", HistType::kTH1D, {{1000, 0., 0.2}});
           }
         }
       }
@@ -329,7 +329,13 @@ struct LumiStabilityPP {
 
       if (isTriggerTVX) {
         histNBcsVsTime[runNumber]->Fill(timeSinceSOF);
-        histInteractionRate[runNumber]->Fill(mRateFetcher.fetch(ccdb.service, bc.timestamp(), bc.runNumber(), std::string("T0VTX"), true) * 1.e-3); // kHz
+        double rate{-1.};
+        int runVdM23Start{542757};
+        int runVdM23Stop{542768};
+        if (runNumber < runVdM23Start && runNumber > runVdM23Stop) {
+          rate = mRateFetcher.fetch(ccdb.service, bc.timestamp(), bc.runNumber(), std::string("T0VTX"), true) * 1.e-3; // kHz
+        }
+        histInteractionRate[runNumber]->Fill(rate);
       }
 
       int64_t globalBC = bc.globalBC();
@@ -430,7 +436,7 @@ struct LumiStabilityPP {
       histNBcsVsBcId[runNumber]->Fill(localBC);
     }
     // fill histogram for mu
-    float deltaTime = timeStopSinceSOF - timeStartSinceSOF;
+    float deltaTime = (timeStopSinceSOF - timeStartSinceSOF) * 60.; // convert back to seconds
     for (int iTrigger{0}; iTrigger < NTriggerAliases; ++iTrigger) {
       for (int iBCCategory{0}; iBCCategory < NBCCategories; ++iBCCategory) {
         if (iBCCategory == BCSL) { // we do not do it for superleading because it is not easy to define the number of inspected BCs