THEY JUST STARTED WORKING!, well two of them. not sure what happened or what I was doing wrong. However, one of the led strips isn't working, which could have been the issue. which is weird because they weren't working individually in the beginning either. the one that isn't working only has one operable led on the strip I tried in multiple configurations to get it to work, to no avail. Any way I could get a single replacement for one strip?