I've had the same problem with Spark and even Xcode, so very unlikely it's Apple willfully refusing to index. What fixes it for me is reindexing via going into

I've had the same problem with Spark and even Xcode, so very unlikely it's Apple willfully refusing to index. What fixes it for me is reindexing via going into Spotlight preferences and adding /Applications to the list of folders not to index, then removing it.