Pulsing Earth Rune is in The Waking Shores at 67.87, 57,96. It's in a crumbled single-story building, behind a table with a slab of rubble on top.
Painter's Pretty Jewel is not where it is listed to be. There is nothing there if you go there as a jewelcrafter. The description is the exact same for Frosted Parchment for Inscription (the one below), I believe it has been copy pasted by mistake./way 43.7 30.9 Behind an Arcane Commander.Please fix it.
Found the Intact Coil Capacitor in The Waking Shores at 49.1, 77.5. The coil was initially sparking and interactable. Clicked on it, then had to pick up three nearby items on the ground, then back to the coil and voila.
Not really a treasure, but talking to a pandaren herbalist in the middle of the Plains near Cloverwood Hollow gave me 10 herbalism knowledge and 50 mettle. I haven't seen this listed anywhere on this site.
Two of listed Enchanting treasures are broken - the flower is not looted from the container on given coordinates and the one under wrathion mountain is unreachable / not on minimap / doesnt exist
I love how Engineering still only got two things compared to the seven to nine things all the other professions get. Like... come on!