During gameplay I suddenly found myself able to walk through the bottom layer of leaves on all trees around me, regardless of y level it only applied to the lowest layer of leaves on a tree. i could still interact and break the leaves, while also being able to pass through them like air blocks.

edit: looking at the issue that this seems to be a duplicate of, I do not think that my elytra played a roll in starting or ending the glitch seen in my supplied clip, as I had not used the elytra since my last reload of the game.