Twitter Mobile OneBox missing images due to lack of API keys

[Falco]

You need Twitter API keys to get good oneboxes.

Configure Twitter login and rich embeds for Discourse

In order for rich embeds to work properly a Basic plan for X Dev is mandatory. Rich embeds will not work with the Free X Dev plan. X Configuration Head over to the Developer Portal on X. Choose between a Free, Basic, or Pro X Dev plan and complete the developer agreement and policy requirements. If you would like to have rich embeds on your forum you’ll need at least a Basic plan for X Dev. Rich embeds will not work with the Free X Dev plan. After completing the agreement and pol…