We found Nintex Menu not showing in the Site Actions SharePoint, After Nintex features activated on the same site. We have deactivated and reactivated the site collection feature and site features and still, nothing was happening. This issue exists for entire web Application

There is a workaround for this issue, we need to add safe control in web config file for respective web Application. We need to add the same in all web front end servers.

If we are searching on the internet, Nintex will suggest us to re-install or update the Nintex solution file.

Below are the simple steps to fix this issue in a minute,