Unable to use stone pickax in Skyblock++ map.

Map: Skyblock++ by Fall Studios.

Create a map from the template.  Try to build a cobblestone generator.  Pickup stone ax from chest.  Stone pickax fails to break any block and takes no wear.  Wooden pickax is able to break blocks.

FYI: this was on Preview 1.19.45, not listed in the version options.

Edit: If I make a stone pickaxe it works correctly.  Only the stone pickax in the chest fails to work.