Talk:The Witcher 3 scavenger hunts/@comment-1600847-20160315165514

If you're playing on console, be warned there's a common bug that occurs that makes the Wolf Gear unobtainable that's still not been fixed despite patch 1.12 supposed to have fixed it.

You won't be able to loot the chest in the Kaer Morhen signal tower containing Hieronymus' Notes, so you can't open the portal to get into the cave where the schematics for the armor are located. There's a workaround involving  spamming  a special health potion and jumping off a cliff to get to the cave, but that can cause a second bug where the corpse that has the schematic can't be looted.

This is for the base armor, so by association you won't be able to craft the Enchanced, Superior or Mastercraft versions since they require the previous version of the armor to craft the upgrade.