I’m doing a workaround for the subscription … It’s not the best thing, but it’s working.
I’m using the Hubspot subscription for my French customers (I have more in that language than in English.) And I have created a LP + form with a workflow to update the preferences or clear the contact property when someone unsusbcribe. I also have to manually export the opt-out contact once in a while and re-import as opt-out contact to clean the data.
Painful but in the meantime, it’s working.