Updated builds.

build/three.core.js

@@ -27857,6 +27857,7 @@ class BatchedMesh extends Mesh {
 
 					index.array.copyWithin( nextIndexStart, indexStart, indexStart + reservedIndexCount );
 					index.addUpdateRange( nextIndexStart, reservedIndexCount );
+					index.needsUpdate = true;
 
 					geometryInfo.indexStart = nextIndexStart;
 
@@ -27877,6 +27878,7 @@ class BatchedMesh extends Mesh {
 					const { array, itemSize } = attribute;
 					array.copyWithin( nextVertexStart * itemSize, vertexStart * itemSize, ( vertexStart + reservedVertexCount ) * itemSize );
 					attribute.addUpdateRange( nextVertexStart * itemSize, reservedVertexCount * itemSize );
+					attribute.needsUpdate = true;
 
 				}
 
@@ -27893,6 +27895,8 @@ class BatchedMesh extends Mesh {
 
 		}
 
+		this._visibilityChanged = true;
+
 		return this;
 
 	}