Rounding paths isn't working in ACNH DLC

Is anyone else having an issue rounding paths in the home designer DLC lately? I could've sworn I used to be able to round them, but perhaps I was mistaken & that was just on the main game. When I press A a second time to round it, it just deletes the path again.

Am I crazy or did something change with the updates they pushed to fix Switch 2 bugs? (I'm playing on a regular Switch.)