I'm assuming it's the same type I've got...strip that attaches to the camper and runs down the length of the awning. I've got nine lights out in nine months and I hear it's fairly common. It looks like you can get strips of them off of Ebay for around $25, or could when I looked into it a few months back. From what I understand, all you have to do is peel them off and stick the new ones on then reconnect to the factory wiring. I believe they have a "jumper" wire every few lights and can be trimmed to size by cutting them at those places. Sounds like yours may have broken a wire in the strip.
I'm thinking about just ordering some replacements then "repurposing" that strip. Looks like my pass through storage might get some badly needed lighting.
2012 Chevy Tahoe LTZ - HD tow package
2017 Rockwood 2703WS Emerald Edition