Merge pull request #97925 from huwpascoe/lightmap_dynamic_bugfix

Fix updating dynamic objects in LightmapGI

servers/rendering/renderer_scene_cull.cpp

@@ -1998,6 +1998,9 @@ void RendererSceneCull::_update_instance(Instance *p_instance) {
 			pair.bvh2 = &p_instance->scenario->indexers[Scenario::INDEXER_VOLUMES];
 		}
 		pair.cull_mask = RSG::light_storage->light_get_cull_mask(p_instance->base);
+	} else if (p_instance->base_type == RS::INSTANCE_LIGHTMAP) {
+		pair.pair_mask = RS::INSTANCE_GEOMETRY_MASK;
+		pair.bvh = &p_instance->scenario->indexers[Scenario::INDEXER_GEOMETRY];
 	} else if (geometry_instance_pair_mask & (1 << RS::INSTANCE_REFLECTION_PROBE) && (p_instance->base_type == RS::INSTANCE_REFLECTION_PROBE)) {
 		pair.pair_mask = RS::INSTANCE_GEOMETRY_MASK;
 		pair.bvh = &p_instance->scenario->indexers[Scenario::INDEXER_GEOMETRY];