Downloading credit card adds cleared transactions to other periods

I a had my credit card account reconciled, then downloaded from the bank the transaction for the last month (explicitly selecting the dates). Duplicate transaction for upto 2 months ago have been entered as cleared and the categories on some of the duplicates are different. for example a duplicate of the payment, 2 months before the download period now comes from my brokerage account.

I have manually reviewed the raw QFX file looking for dates that are outside the downloaded range, however there are none.

how do i download without adding non-downloaded transactions to the register?
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