Aggregator doesn't accept Railcraft's ender dust as a substitute for ae2's one. I'm using the latest versions of both.

i'm just using the standard dustEnderPearl oredict key, so there shouldn't be a problem on my end (although it seems like it should be fixed on their end, as implied by this issue)

Indeed, that seems to be the case. I'll use crafttweaker then, as it is suggested there, I guess