Wildberry bushes, candles, and pretty much any block that isn't totally solid confuses the AI badly. My villagers keep trying to walk through bushes and get stuck there until I push them out or break the bush. Other entities seem to be affected too.

I've run into this as well. It causes issues with combat in my modpack, so I'm removing Rustic from the mix for now. Too bad; I like some of the decoration it adds :/

You can easily encounter this issue by standing on the opposite side of a bush from a creeper.

Fixed in version 1.1.0

@the-realest-stu Awesome, will try adding it back in then! If you don't see a new issue from me within a month then it's working well enough for me XD