Hello, I installed this along with Emendatus Enigmatica, which comes with it's own vanilla ores such as gold ore and iron ore. However, the mineshafts spawn the unmodded ores. Players would find emendatusenigmatica:gold_ore in caves and minecraft:gold_ore in mineshafts. What would you recommend for this? Perhaps I could use a datapack to override minecraft:gold_ore drops, however I'm not sure that is possible.

There is a way to replace it with Blockswap mod by CorgiTaco.

Sorry, I'm not the best person to ask for this. I'm not sure what tools there are that might be able to help you out.

I have found a way to make Minecraft ores drop different things by modifying the .json files that come with Minecraft and using OpenLoader to install them. It looks like there might have been another issue that came up at the same time to make it seem like it was not working. However the blocks are still different when it comes down to it, and other people might want to add modded ores or possibly crystal blocks to mineshafts in the future I would imagine, so I still think it is a good suggestion.