diff --git a/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/DynamicSliceInstanceSpawner_DynamicSliceSpawnerWorks.py b/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/DynamicSliceInstanceSpawner_DynamicSliceSpawnerWorks.py
index 0be220cad0..466cd610e4 100755
--- a/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/DynamicSliceInstanceSpawner_DynamicSliceSpawnerWorks.py
+++ b/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/DynamicSliceInstanceSpawner_DynamicSliceSpawnerWorks.py
@@ -114,11 +114,8 @@ class TestDynamicSliceInstanceSpawner(EditorTestHelper):
         # This should result in 400 instances, since our box is 16 m x 16 m and by default the veg system plants
         # 20 instances per 16 meters
         spawner_entity.get_set_test(0, 'Configuration|Allow Empty Assets', True)
-        general.idle_wait(1.0)
         num_expected_instances = 20 * 20
-        box = azlmbr.shape.ShapeComponentRequestsBus(bus.Event, 'GetEncompassingAabb', spawner_entity.id)
-        num_found = azlmbr.areasystem.AreaSystemRequestBus(bus.Broadcast, 'GetInstanceCountInAabb', box)
-        property_tree_success = property_tree_success and (num_found == num_expected_instances)
+        property_tree_success = property_tree_success and self.wait_for_condition(lambda: dynveg.validate_instance_count_in_entity_shape(spawner_entity.id, num_expected_instances), 5.0)
         self.test_success = self.test_success and property_tree_success
         self.log(f'Property Tree spawner type test: {property_tree_success}')
 
@@ -127,10 +124,8 @@ class TestDynamicSliceInstanceSpawner(EditorTestHelper):
         # Since we have an empty slice path, we should have 0 instances once we disable 'Allow Empty Assets'
         num_expected_instances = 0
         allow_empty_assets_success = allow_empty_assets_success and spawner_entity.get_set_test(0, 'Configuration|Allow Empty Assets', False)
-        general.idle_wait(1.0)
-        num_found = azlmbr.areasystem.AreaSystemRequestBus(bus.Broadcast, 'GetInstanceCountInAabb', box)
-        self.log(f'Allow Empty Assets test: Found {num_found} instances -- Expected {num_expected_instances} instances')
-        allow_empty_assets_success = allow_empty_assets_success and (num_found == num_expected_instances)
+        self.log('Allow Empty Assets test:')
+        allow_empty_assets_success = allow_empty_assets_success and self.wait_for_condition(lambda: dynveg.validate_instance_count_in_entity_shape(spawner_entity.id, num_expected_instances), 5.0)
         self.test_success = self.test_success and allow_empty_assets_success
         self.log(f'Allow Empty Assets test: {allow_empty_assets_success}')
 
@@ -143,10 +138,8 @@ class TestDynamicSliceInstanceSpawner(EditorTestHelper):
         descriptor = hydra.get_component_property_value(spawner_entity.components[2], 'Configuration|Embedded Assets|[0]')
         descriptor.spawner = dynamic_slice_spawner
         spawns_slices_success = spawns_slices_success and spawner_entity.get_set_test(2, "Configuration|Embedded Assets|[0]", descriptor)
-        general.idle_wait(1.0)
-        num_found = azlmbr.areasystem.AreaSystemRequestBus(bus.Broadcast, 'GetInstanceCountInAabb', box)
-        self.log(f'Spawn dynamic slices test: Found {num_found} instances -- Expected {num_expected_instances} instances')
-        spawns_slices_success = spawns_slices_success and (num_found == num_expected_instances)
+        self.log('Spawn dynamic slices test:')
+        spawns_slices_success = spawns_slices_success and self.wait_for_condition(lambda: dynveg.validate_instance_count_in_entity_shape(spawner_entity.id, num_expected_instances), 5.0)
         self.test_success = self.test_success and spawns_slices_success
         self.log(f'Spawn dynamic slices test: {spawns_slices_success}')
 
diff --git a/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/EmptyInstanceSpawner_EmptySpawnerWorks.py b/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/EmptyInstanceSpawner_EmptySpawnerWorks.py
index 161ad038a5..dc353aca1a 100755
--- a/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/EmptyInstanceSpawner_EmptySpawnerWorks.py
+++ b/AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/EmptyInstanceSpawner_EmptySpawnerWorks.py
@@ -100,21 +100,15 @@ class TestEmptyInstanceSpawner(EditorTestHelper):
 
         # This should result in 400 instances, since our box is 16 m x 16 m and by default the veg system plants
         # 20 instances per 16 meters
-        general.idle_wait(2.0)
         num_expected_instances = 20 * 20
-        box = azlmbr.shape.ShapeComponentRequestsBus(bus.Event, 'GetEncompassingAabb', spawner_entity.id)
-        num_found = azlmbr.areasystem.AreaSystemRequestBus(bus.Broadcast, 'GetInstanceCountInAabb', box)
-        property_tree_success = property_tree_success and (num_found == num_expected_instances)
+        property_tree_success = property_tree_success and self.wait_for_condition(lambda: dynveg.validate_instance_count_in_entity_shape(spawner_entity.id, num_expected_instances), 5.0)
         self.test_success = self.test_success and property_tree_success
-        self.log(f'Found {num_found} instances -- Expected {num_expected_instances} instances')
         self.log(f'Property Tree spawner type test: {property_tree_success}')
 
         # 6) Validate that the "Allow Empty Assets" setting doesn't affect the EmptyInstanceSpawner
         allow_empty_assets_success = True
         spawner_entity.get_set_test(0, 'Configuration|Allow Empty Assets', False)
-        general.idle_wait(2.0)
-        num_found = azlmbr.areasystem.AreaSystemRequestBus(bus.Broadcast, 'GetInstanceCountInAabb', box)
-        allow_empty_assets_success = allow_empty_assets_success and (num_found == num_expected_instances)
+        allow_empty_assets_success = allow_empty_assets_success and self.wait_for_condition(lambda: dynveg.validate_instance_count_in_entity_shape(spawner_entity.id, num_expected_instances), 5.0)
         self.test_success = self.test_success and allow_empty_assets_success
         self.log(f'Allow Empty Assets test: {allow_empty_assets_success}')