Unable to interact with two specific items in inventory

I have two specific items in my inventory which cannot be interacted with in any way. One is a chest in the upper right corner, and the other is a bucket of lava in the left side. I cannot move them, drop them, or place them in my toolbar. There is literally nothing I can do with these items and I have functionally lost two inventory slots because of this. This issue is persistent between game sessions. I do not know the cause