All items and blocks appear transparent when picked up. Gray-scale items, such as grass, appear gray as in their texture files.
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Comments 17
Sounds like MC-92906, linking as related for now.

Can confirm this behaviour; seems to happen with all items, no matter what picking up. Vanilla minecraft with no resource pack.
I also can confirm

So it's been confirmed multiple times. Please change 'Confirmation Status'.

Can confirm for 15w49a

Confirmed for 15w50a
New ticket, please.
MC-93642 is open and applies to orbs only
As for items,it is not a bug and innovation!!!!!!!!!!
Please attach some screenshots or a video. Which items are affected? If this only affects resource packs, please attach a sample resource pack.