Contrary to the in game description, using a Rune of Shattering on an item does not guarantee a minimum of 1 shard per affix on an item. I could not find patch notes regarding this issue so I will assume it is a bug.
Example: Using Rune of Shattering on a rare amulet with fire resistance, elemental damage, and minion damage - I will receive shards for the fire resistance and minion damage but nothing from elemental damage.
I noticed this issue sometime yesterday, either version 0.9F or 0.9E. I had been playing all day so the client may have been running with 0.9E while 0.9F was live. However I tested bug this just prior to this post and it is still happening after updating to 0.9F.
Player-prev.log (1.9 MB)