I am having the same issue on my desktop application. When I update my online accounts (or sync to mobile), Quicken overwrites the category and the payee/title of the transaction. Even if I then edit the transaction--in this most recent case, a transfer between two of my accounts at one online institution--to be correct and reflecting the transfer and the correct payee, the online syncing just overwrites repeatedly as soon as another sync occurs. How do I prevent Quicken from overwriting the changes that I've made to correct the incorrect categorization/etc.?