With the improvement from the previous version, the plugin is a lot more enjoyable, but i found some bugs while playing with my friends:

Players from other team can't build or break, but still they can interact with any container/usable block that is not a chest like item frames, furnaces, jukeboxes, enderchests, anvils, hoppers, ecc.

They can place lava/water buckets too and kill entities.

Also, the "entering wilderness" popup would make more sense if it appeared only when leaving an actual claim instead of appearing on every unclaimed chunk.

I still think you are doing an excellent job with this plugin, keep going and it will be perfect!

It would be a huge improvement if we had a toggle command like /team chunk borders" to disable chunk border particles. Additionally, the current system outlines every single chunk; it would look much cleaner if particles only appeared at the outer perimeter of a group of adjacent claimed chunks, rather than delimitating every internal border.

Still, great job.