I was editing a segment that I run every month (it had just one component, the dates people joined.I changed the dates but couldn't see how to save the changes. It took me a good while to realize that the vacation message you throw up at the top of the screen was covering the "Save" button. You need to fix that coding so it sits above the critical parts of the page. If I had remembered that the "save" was at the top I probably would have realized it sooner, but since I use it infrequently, and most of the time it's probably visible, I just didn't remember. Or maybe you should move the save down below the segment criteria instead of above it.