The latest Infuse (4.0.3) has been crashing when I try to update metadata, whether using the embedded data or pulled from online. Often you don't even need to update it, only hit the Edit button and then back out. Once the application begins crashing, it can no longer update for the data without crashing. By crashing, I mean that the application can no longer find the hard disk on the network. The only option is to force quit the application and then restart it.
I've tried clearing metadata, removing and adding in the app fresh, and even resetting the entire Apple TV to its factory settings. It even now happens under the latest OS update, 9.2.