Hi
Glacial Lodestones are currently misslabelled as Lonestones, and their cores do not produce Glacial Lodestones from the mystic forge, rather they give corrupted Lodestones back.
I noticed this is mentioned on the wiki already to aid people trying to purchase them from the BLT, however it means there are currently two different types of cores producing corrupted lodestones, and none with which to create Glacial Lodestones, please fix.