Engineering connections and movement of fastener bundle

I've made a fastener bundle that I'm trying to connect to a part that's supposed to rotate. However, even though when completely unconstrained the bundle is free, doing a Fix Together with another free part (which should keep it completely free still) the part becomes fixed. After asking people in my organization, it just seems like fastener bundles do not get along very well with Engineering Connections. Is there any way to work around this or change it, or am I doing something wrong?