Rendering an EntityHuman without a setting a name crashes. This occurs when Draconic Evolution attempts to render its mob souls. I ran into this issue when using the Draconic Evolution Information Tablet (just open it and wait for it to cycle through to the headcrumbs mob). The modpack I'm running is Sky Factory 3 (with some profiling mods added in).

crash-2017-08-19_00.07.18-client.txt

This is an issue for me as well, and I believe there are other interactions with Draconic Evolution that cause crashes for the same reason: java.lang.IllegalArgumentException: Name and ID cannot both be blank