I don't know if this was a specific consequence of viewing recently added, but I installed beetstream to try it out, ran the process, pointed DSub at it. At first it seemed like it was working alright - Recently Added view rendered normally. I then installed DSub on my wife's phone and tried to repeat the same process. Responses errored, the process locked up and actually my entire server became unresponsive.
I'm guessing I triggered some kind of infinite loop. I will investigate further to see if I can get more reliable repro.