How to add a document with a custom model in Alfresco Community?

Question

I just created a custom model in Alfresco Share using the web interface and for some reason I can't use it when I try to create a document.

I know that model works because I can edit existing documents to change their types. Any ideas ?

I tried to activate / desactivate the Model, without getting different results. I edited the model , restarted Alfresco server and it's the same.