Issue with Keyword Mapping in 'Find Jobs' Waterfall Enrichment

I think there is something broken in the mapping for the 'Find Jobs' waterfall, specifically with the TheirStack enrichment, and passing keywords via waterfall into this enrichment. No matter what I tried, the Waterfall version of TheirStack will not return keyword-based results, but when testing with the individual enrichment, it worked just fine. My gut says the variable is being passed incorrectly via waterfall.