• Minecraft:1.20.1
• Forge:47.1.47
• Cucumber:7.0.1
• Mystical Agriculture:7.0.3
• Mystical Customization:5.0.0

Does it work if you just use an item instead of a tag?

Can you post your crop json? If you set an ingredient it should have an Infusion crafting recipe to make it.

{
"name": "Arlemite",
"type": "mysticalagriculture:resource",
"tier": "mysticalagriculture:4",
"ingredient": {
"tag": "forge:ingots/arlemite"
},
"color": "9DD75A",
"textures": {
"flower": "mysticalagriculture:block/flower_ingot",
"essence": "mysticalagriculture:item/essence_ingot",
"seeds": "mysticalagriculture:item/mystical_seeds"
}
}

I'm going to close this due to inactivity. If this is still an issue on the latest version you can reply here.