Unable to join using latest Bukkit-Connect & ProtocolSupport

[danjb2000]

Unable to join on any version.
Fresh server, latest PaperSpigot (Tried Spigot) build as of this morning, latest Bukkit-Connect (Proxy / Connect as-well) and latest Protocol Support.

Receive the following error:
https://hastebin.com/unopaheteb.md

Reported to ProtocolSupport developer, and simply told this is an incompatibility with LilyPad.

[coelho]

Any reason you can't use ViaRewind/ViaBackwards?

I'd update to support ProtocolSupport, but they break compatibility too often with complete disregard for other plugins. We actually already have code in place to support earlier versions of ProtocolSupport (but they broke it again).