Weird matching

I just manually entered a transaction (then set it to monthly repeat). Then, once I went to the specific account (a credit card), I could not find it. I have reconciled transactions hidden. It was showing up on the spending tab though, that’s how I figured out it was auto-matched with a week-old transaction with a different payee, that was already matched and reconciled long ago. Not only it got matched, but because the Lawson transaction was already reconciled, it immediately got treated as reconciled and would have screwed me next time I’m actually trying to reconcile. What gives? I do NOT have auto-import here in Japan so it’s not related to that.