fix: ensure all chidlren are preprocessed (#1442)

Author: Jordan-Lane

src/core/renderer/tiles/TilesRendererBase.js

@@ -816,7 +816,7 @@ export class TilesRendererBase {
 			if ( '__depth' in child ) {
 
 				// the child has already been processed
-				break;
+				continue;
 
 			} else if ( immediate ) {