I recently added Mekanism to my personal mod pack and most of the additional modded ores showed up and worked correctly. Lead, Osmium, and Uranium are all fine.

Tin ore chunks were activated and added correctly as sieve drops, but were not given a recipe to craft into Mekanism Tin Ore. I believe the problem is here: https://github.com/thedarkcolour/ExDeorum/blob/main/src/main/java/thedarkcolour/exdeorum/compat/PreferredOres.java#L133

Mekanism is not among the mods searched for when adding a Tin Ore recipe. Even if I manually set the item ID in the preferred ores config, no recipe is generated. I've currently worked around it by manually adding a recipe with KubeJS.

Damn I missed one