Hello @Edvision, welcome to the community forum and reporting the issue. Can you please check if restarting the browser that is not syncing data helps here? We will look into our servers to see if we can track it down too.
Great, thanks for the update! We received a higher than usual traffic this week. This caused a component of sync service to become a bottleneck. We scaled up the sync service yesterday to handle the traffic and are monitoring them. Things look good and stable.
Thank you for your help by reporting and updating us on the issue! If you face any issue, feel free to let us know and post them here.