I first noticed these two bugs when I was playing Super Hostile.

The first thing I noticed was that when I clicked on a block (we'll call it x) in my inventory, it would not be picked up. Only when I held the mouse would it allow me to move x, and it would move very rigidly. If I tried to move x to a slot where there was already a block y, instead of placing x there and giving me y, x would reset to its original position on my inventory.

Furthermore, even if I am holding M1, it will randomly place blocks in my inventory, as if I clicked on the spot when I did not.

Another problem I noticed was with the placement of the values in the inventory. The values remained in their normal position (the bottom right-corner of the block), but whenever I pick up an item (with more than 1), the value will move to the top right-corner as long as I have picked up the item. Pictures are below.

Overall, these bugs have ruined the block cohesion in Minecraft, and have made me die, due to the fact that the blocks or items kept resetting and moving in a rigid motion. It has ruined the flow of the game and will continue to do so until it is fixed.