I noticed this starting a few weeks ago.
Whenever I do a transfer at Chase from one Chase account to another, or pay my Chase credit card using my Chase checking account, the downloaded transfer indicates a transfer to the same account. The other account is not in the transfer category. So I correct it (didn't used to have to do that!) and it tells me I am recording a transfer to the same account (which I am not, but whatever).
So, in Account A I have downloaded as: [Account A] as the category, when it should be [Card A].
Same on the other side: in the Card A account it shows the transaction category as [Card A]. when it should be (and used to be) [Account A].
This happens on all Chase transfers, not just credit card payments.
I've verified the file, latest updates, etc. etc. It used to work fine for years. This started maybe 4 weeks ago. The transactions on the Chase web site are correct.