Opt-out synchronisation issue with Zoho CRM

Opt-out synchronisation issue with Zoho CRM

Hi Zoho team!

We are finalizing the setting up of Zoho Campaigns and we have an issue for opt-out synchronisation with Zoho CRM.
1. We have enabling "Update opt-out contacts" in push campaigns reports to Zoho CRM settings
2. We have tried the opt-out process with a email campaign

Only the Zoho Campaigns Status is updated but not the Email Opt Out field in Zoho CRM (cf. screenshot).
Could you help me to fix this issue?

Best,
Romain QUECHON