how do i use jigsaw blocks

so i just got into jigsaw generating and i followd some tutorials but i just cant get the jigsaw to generate proberly for example it generating down or just does not generating in specefic chunks it also only generates 1 part of the tructure not the full thing and then you have that my loottables dont generate whit it Code: { "name": "jules-structures:moonrigpool/moonrigpool", "fallback": "minecraft:empty", "elements": [ { "weight": 50, "element": { "location": "minecraft:moon_rig_layer_1", "processors": "minecraft:empty", "projection": "rigid", "element_type": "minecraft:single_pool_element" } }, { "weight": 50, "element": { "location": "minecraft:moon_rig_layer_2", "processors": "minecraft:empty", "projection": "rigid", "element_type": "minecraft:single_pool_element" } }, { "weight": 50, "element": { "location": "minecraft:moon_rig_layer_3", "processors": "minecraft:empty", "projection": "rigid", "element_type": "minecraft:single_pool_element" } }, { "weight": 50, "element": { "location": "minecraft:moon_rig_layer_4", "processors": "minecraft:empty", "projection": "rigid", "element_type": "minecraft:single_pool_element" } } ] }