Every so often when destroying blocks with a tool that has the ability to automine(For example, an Efficiency 4 or 5 diamond shovel), blocks look like they're gone, but when trying to go where that block used to be, the game jitters and it's difficult to move until you get out of that area. It's easy to solve, but it happens so often that it becomes really annoying. To solve it, I place a block where the game jitters and try to mine it again. When I do, I get 2 blocks instead of 1. Another way to solve it is to reload the chunks where the bugged block is. After leaving and loading up the world again, the bugged blocks turn back into a block, rather than looking like air. Going far away from the affected chunks and going back to them also works. If you want to recreate this, take an Efficiency 4 or 5 diamond shovel and dig in survival mode with it. I would say that Efficiency 4 works best.