Collision is different and has errors when walking or falling

As I walked, I noticed something strange that hadn't happened before. It felt like I was stepping into the block, and then it started "jumping" repeatedly on its own.Checking, I could see that this error occurs when the player falls or jumps on the edge of a block, perhaps causing the game to not correctly understand whether we are in the top or bottom block. I think this is due to the collision area with the blocks, which now seems smaller than before. It seems like a forced error, but I noticed this while walking normally.