Most of the Katana range was just updated to the Mk2 version. Are these 28 amp types available in the new models as well?
According to this the liveset didn't work in the Katana 50 Mk2, but perhaps some changes are required?
https://www.reddit.com/r/BossKatana/comments/dcvk3i/returned_my_version_1_and_got_an_mkii/