Importing Amazon Items CSV With Only Header and Single Item Filters to Zero Items

I have an interesting edge case with importing Amazon Items CSV data. When there is only a single item in the CSV export, the import utility correctly detects 1 new purchase, but the filters see 0 purchases, thus I cannot add the purchase to my Transactions sheet.

The date of the single transaction in the attempted import is 1/2/2021. I’m wondering if there is a bounding issue with the filter logic when there is only a single date, or possible when there is a date range of only one date. I do notice on my successful imports that the # of New Purchase and Filters Purchases always differ by 1, so it may be a counting issue. Does anyone have any thoughts on why a single transaction import might not be picked up?

To update, here is the importer dialog when there are two transactions in the CSV file. Note that the top states 2 new purchases, but the Filters section says 1 purchase.

Both are successfully added, however.
I hope that gives enough information to investigate.