I been getting an old version of event-manager after installing delegates, this is strange, this is the old version I am getting:
https://github.com/component/event-manager/blob/06a939c5690bc7b7bdd266d8f0eef1a9e84f1220/index.js
Not sure if this is a caching issue, but it happen at the first install (of delegates) and after reinstalling then it downloads the correct version and delegates starts to work fine.
Best,
JB