diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java
index 7e073a55a..38fe4ab43 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java
@@ -312,64 +312,66 @@ public abstract class BaseWorkerContext extends I18nBase implements IWorkerConte
         map = new HashMap<String, ResourceProxy>();
         allResourcesById.put(r.getType(), map);
       }
-      map.put(r.getId(), new ResourceProxy(r));
+      if ((packageInfo == null || !packageInfo.isExamplesPackage()) || !map.containsKey(r.getId())) {
+        map.put(r.getId(), new ResourceProxy(r));
+      }
 
-        String url = r.getUrl();
-        if (!allowLoadingDuplicates && hasResource(r.getType(), url)) {
-          // spcial workaround for known problems with existing packages
-          if (Utilities.existsInList(url, "http://hl7.org/fhir/SearchParameter/example")) {
-            return;
-          }
-          throw new DefinitionException(formatMessage(I18nConstants.DUPLICATE_RESOURCE_, url));
+      String url = r.getUrl();
+      if (!allowLoadingDuplicates && hasResource(r.getType(), url)) {
+        // spcial workaround for known problems with existing packages
+        if (Utilities.existsInList(url, "http://hl7.org/fhir/SearchParameter/example")) {
+          return;
         }
-        switch(r.getType()) {
-          case "StructureDefinition":
-            if ("1.4.0".equals(version)) {
-              StructureDefinition sd = (StructureDefinition) r.getResource();
-              fixOldSD(sd);
-            }
-            structures.register(r, packageInfo);
-            break;
-          case "ValueSet":
-            valueSets.register(r, packageInfo);
-            break;
-          case "CodeSystem":
-            codeSystems.register(r, packageInfo);
-            break;
-          case "ImplementationGuide":
-            guides.register(r, packageInfo);
-            break;
-          case "CapabilityStatement":
-            capstmts.register(r, packageInfo);
-            break;
-          case "Measure":
-            measures.register(r, packageInfo);
-            break;
-          case "Library":
-            libraries.register(r, packageInfo);
-            break;
-          case "SearchParameter":
-            searchParameters.register(r, packageInfo);
-            break;
-          case "PlanDefinition":
-            plans.register(r, packageInfo);
-            break;
-          case "OperationDefinition":
-            operations.register(r, packageInfo);
-            break;
-          case "Questionnaire":
-            questionnaires.register(r, packageInfo);
-            break;
-          case "ConceptMap":
-            maps.register(r, packageInfo);
-            break;
-          case "StructureMap":
-            transforms.register(r, packageInfo);
-            break;
-          case "NamingSystem":
-            systems.register(r, packageInfo);
-            break;
+        throw new DefinitionException(formatMessage(I18nConstants.DUPLICATE_RESOURCE_, url));
+      }
+      switch(r.getType()) {
+      case "StructureDefinition":
+        if ("1.4.0".equals(version)) {
+          StructureDefinition sd = (StructureDefinition) r.getResource();
+          fixOldSD(sd);
         }
+        structures.register(r, packageInfo);
+        break;
+      case "ValueSet":
+        valueSets.register(r, packageInfo);
+        break;
+      case "CodeSystem":
+        codeSystems.register(r, packageInfo);
+        break;
+      case "ImplementationGuide":
+        guides.register(r, packageInfo);
+        break;
+      case "CapabilityStatement":
+        capstmts.register(r, packageInfo);
+        break;
+      case "Measure":
+        measures.register(r, packageInfo);
+        break;
+      case "Library":
+        libraries.register(r, packageInfo);
+        break;
+      case "SearchParameter":
+        searchParameters.register(r, packageInfo);
+        break;
+      case "PlanDefinition":
+        plans.register(r, packageInfo);
+        break;
+      case "OperationDefinition":
+        operations.register(r, packageInfo);
+        break;
+      case "Questionnaire":
+        questionnaires.register(r, packageInfo);
+        break;
+      case "ConceptMap":
+        maps.register(r, packageInfo);
+        break;
+      case "StructureMap":
+        transforms.register(r, packageInfo);
+        break;
+      case "NamingSystem":
+        systems.register(r, packageInfo);
+        break;
+      }
     }
   }
 
@@ -382,12 +384,14 @@ public abstract class BaseWorkerContext extends I18nBase implements IWorkerConte
       }
       if ((packageInfo == null || !packageInfo.isExamplesPackage()) || !map.containsKey(r.getId())) {
         map.put(r.getId(), new ResourceProxy(r));
+      } else {
+        System.out.println("Ingore "+r.fhirType()+"/"+r.getId()+" from package "+packageInfo.toString());
       }
 
       if (r instanceof CodeSystem || r instanceof NamingSystem) {
         oidCache.clear();
       }
-      
+
       if (r instanceof CanonicalResource) {
         CanonicalResource m = (CanonicalResource) r;
         String url = m.getUrl();
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java
index 34bfc6099..a781cc776 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java
@@ -218,7 +218,7 @@ public class CanonicalResourceManager<T extends CanonicalResource> {
     if (cr.getPackageInfo() != null && cr.getPackageInfo().getId() != null && cr.getPackageInfo().getId().startsWith("hl7.terminology") && "http://nucc.org/provider-taxonomy".equals(cr.getUrl())) {
       return;
     }
-    
+        
     if (enforceUniqueId && map.containsKey(cr.getId())) {
       drop(cr.getId());      
     }
@@ -236,7 +236,7 @@ public class CanonicalResourceManager<T extends CanonicalResource> {
       }
     }
     CachedCanonicalResource<T> existing = cr.hasVersion() ? map.get(cr.getUrl()+"|"+cr.getVersion()) : map.get(cr.getUrl()+"|#0");
-    if (existing != null && (cr.getPackageInfo() != null && cr.getPackageInfo().isExamplesPackage())) {
+    if (map.get(cr.getUrl()) != null && (cr.getPackageInfo() != null && cr.getPackageInfo().isExamplesPackage())) {
       return;
     }
     if (existing != null) {
@@ -245,6 +245,7 @@ public class CanonicalResourceManager<T extends CanonicalResource> {
     
     list.add(cr);
     map.put(cr.getId(), cr); // we do this so we can drop by id
+    map.put(cr.getUrl(), cr);
 
     if (cr.getUrl() != null) {
       // first, this is the correct reosurce for this version (if it has a version)
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/IWorkerContext.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/IWorkerContext.java
index ed0afccfc..ae95c7b40 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/IWorkerContext.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/IWorkerContext.java
@@ -171,8 +171,14 @@ public interface IWorkerContext {
       return version;
     }
     public boolean isExamplesPackage() {
-      return !(id.startsWith("hl7.fhir.") && id.endsWith(".example"));
+      boolean b = id.startsWith("hl7.fhir.") && id.endsWith(".examples");
+      return b;
     }
+    @Override
+    public String toString() {
+      return id+"#"+version;
+    }
+    
   }
 
   public class PackageDetails extends PackageVersion {