Is this intentional? Iron ore giving one dust in crushers/grinders

[783583]

Maybe it's me being a oblivious, but when did this start happening? And is it intentional?
Gold ore is giving two dusts but iron is now just giving one in grinders/crushers.

 

[Death]

Odd

 

[wisemanjp]

That's whack

 

[CreeperCJG]

It may be a glitch 783583? I suggest contacting a higher staff about it, or possibly making a bug report.