Grapesjs adds "-2" to ids in the html with localStorage

It should only happen when you append an HTML that contains an already defined ID, so the editor increments it to avoid conflicts. Are you sure you don't append the same content twice?!

In any case, the function which does the check is here: https://github.com/artf/grapesjs/blob/dev/src/dom_components/model/Component.js#L1262

Which is used here (when you append new content): https://github.com/artf/grapesjs/blob/dev/src/dom_components/model/Components.js#L51

Do you use the latest version?

@artf, yes I do. 0.15.9, although it's the same with prior versions. I tried to remove all the plugins to keep it all very clean, but still getting this as soon as localStorage is generated. Any ideas why or where this may get generated so I can debug?