OK so I've seen this a few times now so I know it is really happening.
I take all of my receipts and categorize every item on them with "split" - it is a lot of work.
Then a few days later I do a new download and it wipes out all of the information I'd previously entered and I have to split the transaction again.
I have not yet determined if it is doing it to all of them but I know for sure it is happening with some of them.
This is a serious problem