The pebble’s 2 set bonus that grants bone golem 5% chance to replenish potion on hit is not working at all.
I tested this by having a total of 16 potion slot (from queen belt), using three potions so there’s only 13 potions left, and clearing an area with only my 2 bone golems. I even specced out of all golem variants and used the default bone golem. Still, after clearing an entire area and being careful not to pick up potions dropped from enemies, I ended up with the 13 potions that I started with. There’s at least a thousand hits from bone golem, it seems like the 2 set effect is completely not working right now.