"Critical error in WH recv thread" and connection time out with Legacy4J

[Cjnator38]

When opening a world to friends with Legacy4J, the toast pops up for friends of the host saying the host went online, but when they click it, it will attempt to connect to that host and time out, with the host's console spitting out a "Critical error in WH recv thread"

Log

I've also opened a bug report on the L4J repo with other issues relating to connecting with it and World Host installed. For that, see Wilyicaro/Legacy-Minecraft#523. I think it would be good to work with them to improve their current implementation. World Host works completely fine on a vanilla instance with Fabric Loader 0.16.0