I have a problem whit essetials, i have put unsafe-enchantments: true , but when i do /enchant eff 20 he put Efficiency 20 on my pickaxe, but after 1 minute the enchant become Efficiency 10 I try whit all the enchants .-. Anyone help me?
Is there a plugin that is checking for items that could be considered black listed? I'm sure this isn't essentials.
List ur plugins and server log. Like @SeniorCluckers said, it's either a plugin is looking for blacklisted items or it's just server messing around.
