diff --git a/ApplicationLibCode/Application/Tools/RiaImportEclipseCaseTools.cpp b/ApplicationLibCode/Application/Tools/RiaImportEclipseCaseTools.cpp
index ab48a0e0bd..b3df717e2e 100644
--- a/ApplicationLibCode/Application/Tools/RiaImportEclipseCaseTools.cpp
+++ b/ApplicationLibCode/Application/Tools/RiaImportEclipseCaseTools.cpp
@@ -115,8 +115,10 @@ bool RiaImportEclipseCaseTools::openEclipseCasesFromFile( const QStringList&
             project->activeOilField() ? project->activeOilField()->summaryCaseMainCollection() : nullptr;
         if ( sumCaseColl )
         {
-            std::vector<RimSummaryCase*> newSumCases = sumCaseColl->createSummaryCasesFromFileInfos( summaryFileInfos );
-            for ( RimSummaryCase* newSumCase : newSumCases )
+            std::vector<RimSummaryCase*> candidateCases = sumCaseColl->createSummaryCasesFromFileInfos( summaryFileInfos );
+            std::vector<RimSummaryCase*> duplicatedCases;
+
+            for ( RimSummaryCase* newSumCase : candidateCases )
             {
                 RimSummaryCaseCollection* existingCollection = nullptr;
                 QString                   gridCaseFile =
@@ -130,7 +132,7 @@ bool RiaImportEclipseCaseTools::openEclipseCasesFromFile( const QStringList&
                     auto* existingFileSummaryCase = dynamic_cast<RimFileSummaryCase*>( existingSummaryCase );
                     if ( existingGridSummaryCase )
                     {
-                        delete newSumCase; // No need to add anything new. Already have one.
+                        duplicatedCases.push_back( newSumCase );
                         continue;
                     }
                     else if ( existingFileSummaryCase )
@@ -183,7 +185,8 @@ bool RiaImportEclipseCaseTools::openEclipseCasesFromFile( const QStringList&
 
                         // Remove existing case
                         sumCaseColl->removeCase( existingFileSummaryCase );
-                        delete existingFileSummaryCase;
+
+                        duplicatedCases.push_back( existingFileSummaryCase );
                     }
                 }
                 if ( existingCollection )
@@ -197,10 +200,18 @@ bool RiaImportEclipseCaseTools::openEclipseCasesFromFile( const QStringList&
                 sumCaseColl->updateAllRequiredEditors();
             }
 
-            if ( !newSumCases.empty() )
+            // Delete cases that already was present
+            for ( auto duplicateCase : duplicatedCases )
             {
-                RicSummaryPlotBuilder::createAndAppendDefaultSummaryMultiPlot( { newSumCases.front() }, {} );
-                RiuPlotMainWindowTools::setExpanded( newSumCases.front() );
+                candidateCases.erase( std::remove( candidateCases.begin(), candidateCases.end(), duplicateCase ),
+                                      candidateCases.end() );
+                delete duplicateCase;
+            }
+
+            if ( !candidateCases.empty() )
+            {
+                RicSummaryPlotBuilder::createAndAppendDefaultSummaryMultiPlot( { candidateCases.front() }, {} );
+                RiuPlotMainWindowTools::setExpanded( candidateCases.front() );
             }
         }
     }
diff --git a/GrpcInterface/Python/rips/tests/test_cases.py b/GrpcInterface/Python/rips/tests/test_cases.py
index 2e8e056676..1cfd19c6ac 100644
--- a/GrpcInterface/Python/rips/tests/test_cases.py
+++ b/GrpcInterface/Python/rips/tests/test_cases.py
@@ -220,3 +220,11 @@ def test_selected_cells(rips_instance, initialize_test):
         # Try to read for SOIL the time step (will be empty since nothing is selected)
         soil_results = case.selected_cell_property("DYNAMIC_NATIVE", "SOIL", tidx)
         assert len(soil_results) == 0
+
+
+def test_multiple_load_of_same_case(rips_instance, initialize_test):
+    # Test related to issue https://github.com/OPM/ResInsight/issues/9332
+    path_name = dataroot.PATH + "/flow_diagnostics_test/SIMPLE_SUMMARY2.EGRID"
+    case_count = 3
+    for i in range(case_count):
+        case = rips_instance.project.load_case(path_name)