Prism of Belief drop nerf?

Did you nerf Prism of Belief drop rate?

Yesterday someone joined my hideout to buy a prism of belief i listed, and he asked whilst he was in here if the drop rate was reduced.

I told him no, it's the same and that I didn't notice anything changed.

But then hours later i did runs and it was super dry, like 1 diamond per 12 runs.

Today I just did 12 runs and got 0 prism drops. This can't be right, the price of calamity fragment is quite high.

That's a net loss of 54 divs for 12 runs.

Are you really doing that end league? If so what's the purpose of this?

Don't tell me this is rng, I have over 300 uber arbitrer run and never seen anything like that. And prior to that happening, someone warned me it seemed like the drop rate was lowered.

This shit is so annoying really, for the few ppl that are still playing like me, why would you do that?