I can confirm that. I will add it as a bug.
Here’s how you can do it:
1. Go to the original calendar and right click to ‘subscribe’ button and copy the URL
2. Go to the other wordpress wp-admin and click on Events >> Calendar Feeds and put the url there. Choose category, tags and refresh parameter.
Please let me know if this solution work for you.
//Bogo
Good news. We are working on that now. Sorry for the delay!
//Bogo