Thank you for pointing this bug out. I have tried to replicate the problem you are having, but while playing at a normal speed I couldn't experience it. It only happened one time while spamming inputs (pressing E and clicking "apply again" and continue clicking on the screen during the spawn of the object). In the downloadable version it never happened, I was aware that in very rare cases it could happens (for this reason in the downloadable version there is a restart button in the bottom right for emergency cases, in the web version you can easily restart the page so I did't add the button), but with a patch I thought it went all good. Have you played in the web version or the downloadable one? And have you played fast like spamming or in a normal way?