Rare trees not producing amethysts

So i already have multiple rare “orange” trees but none of them produce any amethysts. A couple weeks ago there was still at least one producing but now none is working

Hi, thank you for reaching out. Can you please let us know your game id so we can investigate your data? Please note that 1. the rate to produce amethysts is very low so you might need to wait for a few hours before seeing one, 2. if you’ve been constantly collecting resources via techsaur you might not see the amethyst popup at all