Destroyer Heated Stone - Solved
Made sure you have all the appropriate ingredients, and then try putting them in the Forge in a different order. Sometimes, the Forge can be persnickety.
https://wiki.guildwars2.com/wiki/Destroyer_Heated_Stone
Good luck.
Thank you. I do. And unfortunately that didn’t work. I could send you screenshots if you’d like. It’s been a bug before, about 3 months ago. It got fixed after about a month apparently.
It seems to have resolved itself between last night and today. Solved.