After activating the Nintex Workflow Site Collection features, they are displaying with the resource tags.
Site Collection Features:
To resolve this you will need to first redeploy the nintexworkflow2013.wsp and then re-activate the Web Application feature.
- Go to: Central Administration > System Settings > Manage Farm Solutions
- Redeploy the "nintexworkflow2013.wsp", this should be deployed globally.
- Go to: Central Administration > Nintex Workflow Management > Web Application Activation
- Reactivate the web application for content web applications.