I've noticed this issue where the parcel seems to get stuck in the distributing stage and never finishes. Its been happening with both a custom parcel I've built and now the Anaconda parcel. In both cases it seems to occur when you install the parcel, remove it, then go back and try to install it again. In the case of my custom parcel if I increment the version it'll install the new version but then then sticks again if I remove and re-install. I checked the logs and there doesn't seem to be anything indicating a problem.