Quicken is autofilling a category that does not exist in the Memorized Payee List for a specific downloaded transaction when accepted. In my case it is autofilling Medical:OTC for most downloaded transactions and entering it into the Memorized Payee List. I delete these saved entries and it will repeat the error. This category does exist for a few payees but not many. As an example Wegman's Market is a common downloaded transaction that I accept Quicken will autofill the category as Medical:OTC. It should be Groceries. Quicken then saves Medical:OTC to the Wegman's Memorized Payee List. I correct the incorrect category and delete Medical:OTC from the Wegman's Memorized Payee list. The next time I accept a Wegman's downloaded transaction the category is autofilled as Medical:OTC not Groceries and Medical:OTC is entered into the Wegman's Memorized Payee List.