A cordova plugin is not being cached - what can I do?

I’ve been creating a cordova app with a number of plugins for two months now and plugin cache has been working as expected. Until I used this plugin and now every run will require a rebuild of the plugin cache making development slow

cordova-plugin-x-socialsharing

It is existing in npmjs and I’m using the latest version as indicated there.

Any idea why the plugin is not being cached and how can I fixed it?