Legacy4J Version

1.8.2

Mod Loader Version

Neoforge 21.1.176

Bug/Glitch Occurrence Context

Just spawned a horse, tamed and tried to open its inventory

Crash Report

No response

What happened wrong?

What the title says. Specifically, when you sneak + right click it kicks you out even if you are on a singleplayer world (which was the case on the showcase video). It happened with this mod: https://www.curseforge.com/minecraft/mc-mods/horseman