Multi-cam stopped working?

For some reason, my Multicam stopped working. I'm using the latest premiere pro cc, i select few clips in the project area, right click then select (create multi-cam sequence...../from audio) but when i drop the new clip into the timeline it appears as multiple blue clips instead of what it used to be green. In the monitor, it only shows one clip even when i activate multi-cam view. The strange thing is, when i open the clip in the source monitor directly from the project before i dropped into the timeline, it appears as multiple cameras and works fine? please help