Well, i dont know if the mod was abandoned, but anyway, dropping my issue here.

I built OreSpawn from source for 1.11.2, and after trying to add this json (plus the default orespawn.json) doesnt generate any ore in the world, both vanilla and the mod block.

For reference, i'm using Forge 13.20.0.2313 and this mod block is from a CustomStuff 4's submod. I also use Jared's Crafttweaker and this one recognizes the block and register recipes with that, so i think it isnt a problem with my block.

Plus i searched for the logs and didnt find any error line related to OreSpawn or CS4.

Thanks in advance!

OreSpawn for 1.11 is currently highly broken and in the process of being worked on. Thank you for the report, though, as I had been unaware that any work was underway or that it needed to be looked at.

Should be fixed in the upcoming 3.x release