ImageOnMap 3.1
Paper 1.12.2

Read the report & video here.

https://github.com/PirateCraft/dev/issues/155

I cant seem to see any permission to disable shift+click for players to prevent duplications? is my only option to remove the plugin as no later version works with 1.12.2?

Hello, we no longer support 1.12. The plugin is on a BSD Licence, you are allowed to edit the code.