I've already re-written Hives three times now (from the period when they rampaged through perilous wiping out all opposing AI; from the period when they tractored anything & everything permanently; from the period when they traded their gear away for baobobs), and there's absolutely nothing wrong with the boss code that I can see.
The issue isn't to do with their scripts, it's to do with the server losing their spawners on save ~ which means editing them so that they're not saved by the server.