Did the actual retaking clips fall out or just the shade and the bar it attaches to fall out? Mine stopped rolling and I’ve had it in and out a couple of times. I still haven’t figured out how to remove the valance but really don’t need to. Using a flashlight you will see there are two retaining clips, one on each end, that the bar just snaps into. I get the shade up in place and use a screwdriver to push the edge of the bar into each clip.
MCD sent me a new spring part but I think I need the stay-down ratchet end too. We had to leave before I got it working but until I move the TV to the refrigerator wall it turns out we don’t need the shade.