Ore generate only at a particular block

Hello !
I am making a Configured Feature and Placed feature file to spawn a new ore, and I want to make the ore spawn only in andesite, so I used in the placed feature file in the  "placement"  list  Json     {       "type": "block_predicate_filter",       "predicate":{         "type": "minecraft:matching_blocks",         "blocks": [           "minecraft:andesite"         ]       }     }
but it seems that the feature is tried to be generated on blocks that don't match, instead of only andesite, making the ore very rare, is there a way to fix this issue ?