Structures getting stone blocks replaced by stone variants and ores

So I have this rock structure (not a feature because I couldn't make it look good using a feature) that has stone blocks in it (ofc, it's a rock so why wouldn't it have stone?). The problem is that sometimes, the stone blocks in the structure get overriden by the features in the underground_ores step. I tried making my structure generate in the vegetal_decoration step (which is lower in the list), because it didn't change anything I tried putting it in the raw_generation (the first in the list) in case they were generated backwards but it still doesn't change anything. Here is my structure file: json { "type": "minecraft:jigsaw", "biomes": "#cptsb:ow_desert", "step": "vegetal_decoration", "spawn_overrides": {}, "terrain_adaptation": "beard_thin", "start_pool": "cptsb:rock", "size": 1, "start_height": { "absolute": 0 }, "project_start_to_heightmap": "WORLD_SURFACE", "max_distance_from_center": 80, "use_expansion_hack": false }