I don’t know if what I had encountered were bugs, but I will still share those here anyway.
Eggshell Fields - I came across this wave recently, and I found out that a medium-sized egg, which was around 60-70% off/beyond the right side of the screen, had not cracked open when I aimed at it (with Lightning Fryer as my weapon). I know that it was still possible to hit the egg since there was an ample portion of it being inside the screen; however, it failed to crack the egg open even as I fired my weapon many times.
Squawk Block - I navigated/moved my spaceship using only the left and right arrow keys. However, when I used my mouse after it to move my spaceship, it just stood still. It only moved back after I left-clicked my mouse.
(Unfortunately, I haven’t managed to take a screenshot or a screen record of those waves.)