Type of bug

Performance issue or memory leak

/ess dump all output

https://essentialsx.net/dump.html?id=c22a98239f314d22b533dbd205e684e6

Error log (if applicable)

No response

Bug description

When trying to run essentials commands like /back or /tp it fails to run the command and puts in chat "Legacy formatting codes have been detected in a MiniMessage string - this is unsupported behavior. Please refer to the Adventure documentation (https://docs.advntr.dev) for more information." This only happened when updating the plugin to "EssentialsX-2.21.0-dev+35-d4ecfd2.jar" and "EssentialsXSpawn-2.21.0-dev+35-d4ecfd2.jar" and a similar error message was showing up in console when the command /eco ... was being run by another plugin. I reverted back to "EssentialsX2.21.0-dev+25-fbfd7e9.jar" and "EssentialsXSpawn-2.21.0-dev+25-fbfd7e9.jar" The error no longer shows up and the plugin and related commands are working as expected.

Steps to reproduce

Upgrade to dev 35-d4ecfd2
Try running /back in game chat
or Try running /tp player1 player2
or Try running /eco give player $

Expected behaviour

/back should teleport the player to a prior location and no error messages should show up in chat/console
/tp player1 player2 should teleport player1 to player2 and no error messages should show up in chat/console
/eco give player $ should give player money and no error messages should show up in chat/console

Actual behaviour

/back only produces an error message, the player is not teleported back
/tp player1 player2 only produces an error message, the player is not teleported
/eco give player $ only produces an error message, the player does not receive money

Example from one of our players:

I have had this same issue however, it just shows the messages not appearing in chat at all but in console displaying that the command is ran.

This is almost certainly an issue with custom locale files, please reach out to our discord with support with this.