Forum:Crystal Abundance with D-Hero diamond dude.

I'm playing YGOPro. I can't activate the effect of 'crystal abundance' using 'destiny hero diamond dude', which is possible according to yugioh wikia. I think the cost of crystal abundance is recognized as effect in the system.. or something. I am not sure. I thought this as the fault of the YGOPro system so I submitted the problem to YGOPRO forum. But I got the reply that to activate CA's effect, I should have at least 1 Crystal beast in my graveyard. It's not true, isn't it?

Please understand that I'm not native English speaker.