The Package#authors field should attempt to drop any invalid author entries rather than strictly fail validation.

[aaclayton]

User feedback:

Also, apparently anything converted from roll20 with R20Converter is suffering from this same issue due to the authors field being incorrect, and that's likely tens of thousands of worlds that will simply just not launch in v11 without causing huge hardship to users who will have absolutely no idea why it's happening or even an inkling on how to fix it. If a value in authors doesn't have the name field, then drop it, instead of blocking world launch. If you see an invalid compendium pack, then consider that it isn't set, instead of blocking world launch, and show a warning to the user, or add a suffix automatically to make it unique