The new "return to inventory" feature seems to fail when a full stack of bonemeal is placed in the crafting grid. I am not sure if this affects any other dyes, as I only tried it with bonemeal, but here's my process:

-Surround the grid with items to dye (I have made both white concrete powder and white stained clay and gotten this for both)
-Place the full stack of bonemeal in the center
-Shift and left-click to craft all items
-Press E to exit the crafting table
-Remaining bonemeal gets tossed onto the floor

Sometimes this will even happen if I don't craft anything... just placing the bonemeal in the center and exiting out will spit it out onto the floor. This does not appear to happen with any other item I have tried though.

EDIT: It happens no matter what spot I place it in, not just the center. Also, it happens on both the 3x3 crafting table grid and the 2x2 inventory grid.

EDIT 2: This only appears to happen when there is more bonemeal in the inventory. Even a single piece will do. If the full stack is the only bonemeal the player is carrying, the bug doesn't happen. However, if the player is carrying a full stack and 1 extra piece, it will happen.

EDIT 3: OK so after determining the factor that makes it happen (in my Edit 2), I have discovered that it happens with any block. I'm guessing that this has already been found, though I don't see it listed.