diff --git a/internal/resource/resource.go b/internal/resource/resource.go
index 94826036..c81f6bae 100644
--- a/internal/resource/resource.go
+++ b/internal/resource/resource.go
@@ -244,7 +244,7 @@ func NewResource(ctx context.Context, slice *apiv1.ResourceSlice, index int) (*R
 	if str, ok := anno[reconcileIntervalKey]; ok {
 		reconcileInterval, err := time.ParseDuration(str)
 		if anno[reconcileIntervalKey] != "" && err != nil {
-			logger.V(0).Info("invalid reconcile interval - ignoring")
+			return nil, fmt.Errorf("invalid reconcile interval, %s", str)
 		}
 		res.ReconcileInterval = &metav1.Duration{Duration: reconcileInterval}
 	}
@@ -259,7 +259,7 @@ func NewResource(ctx context.Context, slice *apiv1.ResourceSlice, index int) (*R
 	if js, ok := anno[overridesKey]; ok {
 		err = json.Unmarshal([]byte(js), &res.Overrides)
 		if err != nil {
-			logger.Error(err, "invalid override json")
+			return nil, fmt.Errorf("invalid override json, %s", err)
 		}
 	}
 
@@ -267,10 +267,9 @@ func NewResource(ctx context.Context, slice *apiv1.ResourceSlice, index int) (*R
 	if str, ok := anno[readinessGroupKey]; ok {
 		rg, err := strconv.Atoi(str)
 		if err != nil {
-			logger.V(0).Info("invalid readiness group - ignoring")
-		} else {
-			res.ReadinessGroup = rg
+			return nil, fmt.Errorf("invalid readiness group, %s", str)
 		}
+		res.ReadinessGroup = rg
 	}
 
 	for key, value := range anno {
diff --git a/internal/resource/resource_test.go b/internal/resource/resource_test.go
index 1e6a8108..0eea12e7 100644
--- a/internal/resource/resource_test.go
+++ b/internal/resource/resource_test.go
@@ -262,22 +262,6 @@ var newResourceTests = []struct {
 			}, r.parsed)
 		},
 	},
-	{
-		Name: "invalid-override-json",
-		Manifest: `{
-			"apiVersion": "v1",
-			"kind": "ConfigMap",
-			"metadata": {
-				"name": "foo",
-				"annotations": {
-					"eno.azure.io/overrides": "not json"
-				}
-			}
-		}`,
-		Assert: func(t *testing.T, r *Resource) {
-			assert.Len(t, r.Overrides, 0)
-		},
-	},
 	{
 		Name: "labels",
 		Manifest: `{
@@ -328,6 +312,70 @@ func TestNewResource(t *testing.T) {
 	}
 }
 
+func TestNewResourceFailures(t *testing.T) {
+	ctx := context.Background()
+	tests := []struct {
+		name     string
+		manifest string
+		wantErr  string
+	}{
+		{
+			name: "invalid-override-json",
+			manifest: `{
+				"apiVersion": "v1",
+				"kind": "ConfigMap",
+				"metadata": {
+					"name": "foo",
+					"annotations": {
+						"eno.azure.io/overrides": "[{\"path\":\".foo\", invalid json"
+					}
+				}
+			}`,
+			wantErr: "invalid override json",
+		},
+		{
+			name: "bad-duration-reconcile-interval",
+			manifest: `{
+				"apiVersion": "v1",
+				"kind": "ConfigMap",
+				"metadata": {
+					"name": "foo",
+					"annotations": {
+						"eno.azure.io/reconcile-interval": "not-a-duration"
+					}
+				}
+			}`,
+			wantErr: "invalid reconcile interval",
+		},
+		{
+			name: "not-a-number-readiness-group",
+			manifest: `{
+				"apiVersion": "v1",
+				"kind": "ConfigMap",
+				"metadata": {
+					"name": "foo",
+					"annotations": {
+						"eno.azure.io/readiness-group": "not-a-number"
+					}
+				}
+			}`,
+			wantErr: "invalid readiness group",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			_, err := NewResource(ctx, &apiv1.ResourceSlice{
+				Spec: apiv1.ResourceSliceSpec{
+					Resources: []apiv1.Manifest{{Manifest: tc.manifest}},
+				},
+			}, 0)
+			require.Error(t, err)
+			assert.Contains(t, err.Error(), tc.wantErr)
+		})
+	}
+}
+
 func TestResourceOrdering(t *testing.T) {
 	resources := []*Resource{
 		{ManifestHash: []byte("a")},