Sorry for crazy title. Anyway, weird bug:
If the script’s name (or it’s parent [and possibly ancestors?]) have spaces in it, then Intellisense will not work when you type ‘script.’, which usually would pop up a window of possible options. Other intellisense stuff will still work.
Discovered this when trying to write a script in a HopperBin whom’s name had a space in it. I removed the space and it worked fine. Then I tried the same, but with a space in the script’s name, and noticed the same bug.