A Web Part or Web Form Control on this Page cannot be displayed or imported. The type could not be found or it is not registered as safe.
I've looked at my web.config and I can see the entry seems to be correct
<SafeControl Assembly="XXXXXX.Publishing, Version=18.104.22.168, Culture=neutral, PublicKeyToken=8717c222138003ef" Namespace="XXXXXX.Publishing.WebParts.Buttons" TypeName="*" Safe="True" />
Everything works well on my dev environment but not in production. What do I miss?