Do you see a green smiley or red smiley on the Version area in the Admin area? As we’re having a weird issue with our Prod instance. We are on 1.3.0.beta4, but it shows 1.3.0.beta5 with a red smiley. Our staging environment is 1.3.0.beta5 with a green smiley.
And our Prod instance has
<meta name="generator" content="Discourse 1.3.0.beta4 - https://github.com/discourse/discourse version a6d72099b4a58ec34b49f77c27769433a220baed">
Staging instance (where it does work) has
<meta name="generator" content="Discourse 1.3.0.beta5 - https://github.com/discourse/discourse version 4ea33608a486eba0f619cc84c2b15de3922a9032">