Hi,
Yes, it seems like the Twitter component is not working. These custom components are not anything we are consistently updating and many of them are made by third party developers.
However i contacted the developer for the twitter component and he said that he would look at it. I will make sure you are updated when the component is fixed.
Other ways to do it, is to either make a script for the functionality or make your own component for it.
Also, what we could do is to add this functionality as a feature request to be investigated and prioritized in our issue tracking system. Would you like this to be done?
Regards,
Max
LoadUI Developer