IDK when this happened, but I just noticed it. It used to be listed as R99. I'm assuming this means it no longer restocks like the other potions/stone mold do? If so that's a real shame. Will there be another method to get this potion besides the token shop? I'm just imagining a lot of inflation, especially now that Vesnali is drawing near.

Probably forgot about it, or something. Thought it was already addressed: Here

this sounds like a bug that should be reported in Problems & Bugs. It's supposed to be restockable just like you say.