@cft

I think I've run into the same bug as you! I've opened an issue and made a small change that I believe resolves the issue. My understanding is that when the unboxing code runs into a decryption error it crashes Scuttlebot with an uncaught exception. I ran into this issue while prototyping blob content, and while I can't tell why your content string would be invalid it sounds like the same symptoms from changes to the content property.

Do you think we might be running into the same bug?