Troubleshooting Class Sync Issues in Webflow's Client-First V2.1

Hi, Relume Team! I'm currently working on implementing the Client-First V2.1 on an existing site in Webflow. Classes (especially type classes) are not consistently syncing and when I refresh my browser new classes are created (ex: 'heading-style-6' becomes 'heading-style-67'). Class sync is on and style preferences have been checked. Are there any solutions or resources regarding this issue? Thanks!