Thank you very much for reporting this issue!
Unfortunately, when I added the startup setting to restrict the spawning of calcite, sulfuric acid, and tungsten to volcano terrain, I broke normal ore placement. If you enable the startup setting: Calcite and tungsten spawn on Vulcanus terrain, you will find them spawned on most volcanoes. Increasing the size of volcanoes (150%-200%) in the map generator is also helpful. The larger the volcano the greater the chance of the resources spawning.