When shift-clicking to move items/blocks between one inventory or other, they turn gray for a moment. Plus, a diamond shovel turns iron, and when closing a chest stackable items that are less than 64 become 64 for a moment.
It doesnt affect gameplay, but its annoying.
Thank you for your report!
We're actually already tracking this issue at MCPE-79889, so I will resolve and link this ticket as a duplicate.
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