diff --git a/source/_posts/2019-09-13-live-blogging-symfonylive-london.md b/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
index ebc85a5d..d56697d6 100644
--- a/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
+++ b/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
@@ -147,3 +147,7 @@ Notifier
 * Transports as middleware (needs sender, receiver, configurable with DSN, encode/decode). `MESSENGER_DSN` added to `.env`
 * Start consumer with `bin/console messager:consume-messages`. Time limit with `--time-limit 300`
 * PHP Enqueue - production ready, battle-tested messaging solution for PHP
+
+### Issues
+
+* Transformers, takes an object and transforms into an array - `FooTransformer implements TransformerInterface`.