Originally Posted by
AnnirasSweets
This is something that's been happening for the past few months and it's basically because the SG recipe is NOT the original recipe from the original Powdered Stove. I'm betting that it's from the Echo Powdered Stove but it's just my best guess until someone that owns the Echo version can confirm.
Regardless of where exactly the Side Goal Snowy Gingersnap recipe came from, the game sees it as a separate and unique item from the original Snowy Gingersnap so they won't stack together on counters. On the upside: those that have already mastered the original can master it again!
If you're ever unsure, you can always check the original appliance presuming you own it. If the recipe in question is still showing on the original appliance then it's an alternate version being used for the Side Goal. If the recipe is missing from the original appliance then that's the version being used for the Side Goal. And, I typically note on the first page if any SG recipes are alternate versions that can be mastered again.