When holding right click, the game randomly thinks you're letting go of right click even when you're not. This can cause you to place blocks rapidly, let go of bows randomly when using them, zoom strangely with the spyglass, etc.

I've tested this on 3 different computers (Windows 10, MacOS, and Macbook Pro), and each used a different USB mouse. They all have the exact same issue, and they all worked properly earlier.