diff --git a/release_tests/montecarlo/irf_plotting/irf_plotting.sh b/release_tests/montecarlo/irf_plotting/irf_plotting.sh
index 02ddf03..7a41c35 100755
--- a/release_tests/montecarlo/irf_plotting/irf_plotting.sh
+++ b/release_tests/montecarlo/irf_plotting/irf_plotting.sh
@@ -18,6 +18,7 @@ CUT="NTel3-PointSource-Hard-TMVA-BDT"
 CUT="NTel2-PointSource-Soft-TMVA-BDT"
 CUT="NTel2-PointSource-Moderate-TMVA-BDT"
 CUT="NTel2-PointSource-Moderate"
+echo "WARNING: CUT is hardwired to $CUT (for now)"
 # Comparison plots - version and simtype hardwired
 COMPAREVERSION="v492"
 COMPARESIMTYPE="CARE_202404"
diff --git a/release_tests/sources/Crab/README.md b/release_tests/sources/Crab/README.md
index 34f56af..b1c9330 100644
--- a/release_tests/sources/Crab/README.md
+++ b/release_tests/sources/Crab/README.md
@@ -43,7 +43,7 @@ for
 Combine files using pre-processed anasum files and run list generated in step before:
 
 ```bash
-./anasum_yearly.sh <runparameter file> <anasum-run-wise directory>
+./anasum_from_runlists.sh <run-parameter file> <anasum-run-wise directory>
 ```
 
 ## Plotting
diff --git a/release_tests/sources/Crab/plot_energy_spectra.C b/release_tests/sources/Crab/plot_energy_spectra.C
index 3fc3e6d..882d484 100644
--- a/release_tests/sources/Crab/plot_energy_spectra.C
+++ b/release_tests/sources/Crab/plot_energy_spectra.C
@@ -14,6 +14,8 @@
 
 #include "TF1.h"
 
+R__LOAD_LIBRARY($EVNDISPSYS/lib/libVAnaSum.so)
+
 #include "../../utilities/parameters.C"
 #include "../../utilities/printutilities.C"
 
diff --git a/release_tests/sources/Crab/plot_lightcurves.C b/release_tests/sources/Crab/plot_lightcurves.C
index 458f068..5b341a7 100644
--- a/release_tests/sources/Crab/plot_lightcurves.C
+++ b/release_tests/sources/Crab/plot_lightcurves.C
@@ -13,6 +13,8 @@
 #include <string>
 #include <vector>
 
+R__LOAD_LIBRARY($EVNDISPSYS/lib/libVAnaSum.so)
+
 #include "../../utilities/parameters.C"
 #include "../../utilities/printutilities.C"
 
diff --git a/release_tests/sources/Crab/plot_sensitivity.C b/release_tests/sources/Crab/plot_sensitivity.C
index b8c4fd8..84de9dd 100644
--- a/release_tests/sources/Crab/plot_sensitivity.C
+++ b/release_tests/sources/Crab/plot_sensitivity.C
@@ -4,6 +4,7 @@
  */
 
 #include <string>
+R__LOAD_LIBRARY($EVNDISPSYS/lib/libVAnaSum.so)
 
 #include "../../utilities/parameters.C"
 #include "../../utilities/printutilities.C"
diff --git a/release_tests/sources/Crab/plot_skymaps.C b/release_tests/sources/Crab/plot_skymaps.C
index 98d905a..5c8fda3 100644
--- a/release_tests/sources/Crab/plot_skymaps.C
+++ b/release_tests/sources/Crab/plot_skymaps.C
@@ -11,6 +11,8 @@
 #include <string>
 #include <vector>
 
+R__LOAD_LIBRARY($EVNDISPSYS/lib/libVAnaSum.so)
+
 #include "../../utilities/parameters.C"
 #include "../../utilities/printutilities.C"
 
diff --git a/release_tests/utilities/parameters.C b/release_tests/utilities/parameters.C
index a6880a8..cf49eeb 100644
--- a/release_tests/utilities/parameters.C
+++ b/release_tests/utilities/parameters.C
@@ -17,8 +17,9 @@
  * Helper for ROOT macros: load libVAnaSum from environment.
  * Search order:
  *   1) $VERITAS_VANASUM_LIBRARY
- *   2) $EVNDISP/lib/libVAnaSum.so
- *   3) ROOT library path via "libVAnaSum.so"
+ *   2) $EVNDISPSYS/lib/libVAnaSum.so
+ *   3) $EVNDISP/lib/libVAnaSum.so
+ *   4) ROOT library path via "libVAnaSum.so"
  */
 bool loadVAnaSumLibrary()
 {
@@ -35,6 +36,14 @@ bool loadVAnaSumLibrary()
         iLibPath = iEnvLib;
     }
     if( iLibPath.size() == 0 )
+    {
+        const char* iEvndispSys = gSystem->Getenv( "EVNDISPSYS" );
+        if( iEvndispSys )
+        {
+            iLibPath = string( iEvndispSys ) + "/lib/libVAnaSum.so";
+        }
+    }
+    if( iLibPath.size() == 0 )
     {
         const char* iEvndisp = gSystem->Getenv( "EVNDISP" );
         if( iEvndisp )
@@ -45,21 +54,26 @@ bool loadVAnaSumLibrary()
 
     if( iLibPath.size() > 0 && !gSystem->AccessPathName( iLibPath.c_str() ) )
     {
-        if( gSystem->Load( iLibPath.c_str() ) >= 0 )
+        // Use gROOT->ProcessLine to properly load the library and its dictionaries
+        string loadCmd = "R__LOAD_LIBRARY(" + iLibPath + ");";
+        int result = gROOT->ProcessLine( loadCmd.c_str() );
+        if( result >= 0 )
         {
             iLibraryLoaded = true;
             return true;
         }
     }
 
-    if( gSystem->Load( "libVAnaSum.so" ) >= 0 )
+    // Try with just the library name
+    int result = gROOT->ProcessLine( "R__LOAD_LIBRARY(libVAnaSum.so);" );
+    if( result >= 0 )
     {
         iLibraryLoaded = true;
         return true;
     }
 
     cout << "Error: unable to load libVAnaSum.so. "
-         << "Set VERITAS_VANASUM_LIBRARY or EVNDISP." << endl;
+         << "Set VERITAS_VANASUM_LIBRARY, EVNDISPSYS, or EVNDISP." << endl;
     return false;
 }