Group name rewrites don't get retrieved by the placeholders, instead the normal group name is shown.

Tried using these placeholders on DeluxeChat with PlaceholderAPI.
%luckperms_last_group_on_tracks_%
%luckperms_group_name%

Vault placeholders seems to be working as expected. (%vault_rank%)
Using PaperSpigot 1.12 and LuckPerms 3.2.37

I've moved this issue to the placeholder repo.

I'll look into fixing it when I get a chance. For now, use %vault_rank% if you can.