Minimal test instance:
Forge 2488, CodeChickenLib-1.10.2-2.5.9.283-universal, p455w0rdslib-1.10.2-1.0.30, p455w0rdsthings-1.10.2-2.2.31 (not tested in older versions), local Forge server (I rolled back to 2488 just because that's the server version I had handy)
In the p455w0rd's Things in-game manual book, trying to view the Horse Armor page crashes the client if playing on a server. It's fine if playing in single player.
Logs
Minimal test instance: Forge 2488, CodeChickenLib-1.10.2-2.5.9.283-universal, p455w0rdslib-1.10.2-1.0.30, p455w0rdsthings-1.10.2-2.2.31 (not tested in older versions), local Forge server (I rolled back to 2488 just because that's the server version I had handy)
In the p455w0rd's Things in-game manual book, trying to view the Horse Armor page crashes the client if playing on a server. It's fine if playing in single player. Logs