Haunting mods seems to NOT SPWAN on grasping mail

I tried to craft with the whole graveyard with about 1500% increased chance to get haunted mod on grasping mail at least 5 times today,16 items in total,0 haunting mod on these items.

If you're just doing 1500% and nothing else, the odds are not great. There's plenty of haunted mods on Grasping Mail trade.

Also note there are some mods that are deceptively Haunted. Like there's all resistance one that looks identical to the elemental one, but it includes chaos res as well.

I also tried on COE and it showed there would be at leaet 40% chance to have haunted mod with my recipe.
But i got 0 of 16 items after patch.It seems not tobe reasonable.