I've been using 12 Pro Max for a few weeks with same exact issues for EXTREMELY slow sync and search, i.e., 6,500 notes still to sync. The issues is duplicated on 2 Win 10 laptops I use. I managed Service Desks for years before retiring, each with either customers or employees finding active db issues with syncing on custom company apps. Usually, the issues centered around Oracle version, Server O/S version, and app version. The DB admins simply couldn't quit chasing the benefits of the latest upgrade of one of the three, causing conflicts with one or both of the other two. Don't know if that's the case here, but it's getting intolerable, and there are other options out there in the market. Spent too many frustrated hours waiting or failing to find notes I know exist and just haven't reached the device.