I've got Tracks 1.04 running on my webhost's servers (tigertech.net). They have all the requisite Ruby on Rails stuff in place.

If I add a new action from the main page, it's added to the Big List without complaint. If, however, I add a second new action in the same context, without first refreshing the main page, it fails. Sometimes I get an error message where the green confirmation box should be: "An error occured on the server." But not always. (The first time I trigger the bug, I get the error message. If I trigger the bug again without refreshing, I don't.)