mirroring is inconsistent

Hi,

I’m the maintainer of the Mobilizon instance keskonfai.fr
I think this plugins can a real boost for Mobilizon adoption, especially for people and communities who already a WordPress based website and they are legion.

I’m currently testing the plugin. I have some issue with events mirroring : it is pretty slow, there are duplicates and also some missing elements.
As an example, I have this page : https://demowop.kaihuri.com/events/ mirroring this groups : https://keskonfai.fr/@sortiracourbevoie/events?future=true

My skills in PHP are rusted but I’m keen to contribute to code if needed.

Setop

The page I need help with: [log in to see the link]