I think we'll need to see your ability editor settings to diagnose what might be wrong, but check the AOE (which controls the barrage range) and max. damage, and double-check that the requirements are fine.
1. If the tower's range is more than 500, it may be attacking while there are no units within range of Barrage.
2. If the tower has any base damage, that will be included in the dealt damage...so its 18 max. damage may be being reached before the appropriate 3 targets are hit.
Hmm, try recreating a steam engine on the humans, simply copy its stuff to your hero, and see what happens, the attack stats of course. Give it your barrage, and if it works, rule out things until you got what made it error.
Hmm, about the Headline News, I noticed threads are being moved into the subforum (Health News, Environmental News, etc.). When that happens, the TH Forum Home page loses the articles, and instead would show old articles posted 1 or 2 weeks ago.
Question: Is there a way to remove thread redirects? It creates a copy of the moved thread and takes up space, and I am leaning towards wanting to remove them in the Headline News. But if they have an expiration date, I guess I'm fine with it.
if a redirect ends up in the same forum as the post it goes to though I think the redirect drops or fails or something but they are not bugged out and when you are working on an indirect the original post is safe.