Harvested Blocks/Items Appearing in Wrong Places

Sometimes when I harvest a block or item, for example a wood block from a tree, coal from a coal block, etc., the dropped object will appear many blocks away from where it should have fallen.

This can happen even if I'm standing directly under/beside the block that I'm mining/harvesting.

I've also noticed that in these instances, some of the items even seem to clip through the block that they're resting on.

The most severe case was when I was in a shallow cave, mined some iron but did not receive it, only to find it on the ground ABOVE the surface shortly after.

I don't have any images as I'm not entirely sure how to get screenshots in PSVita Minecraft, but if needed I could try my best to take a photo with a digital camera of what's occurring.

Thank you in advance for any help that can be provided.