Thank you for playing the game.
We did know about all the issues you mentioned. But, given how much content is in the game, we intentionally prioritized making the game playable in the browser over glitches like the ones you found. Our motive was that we MUST make the game playable in a browser at 60+ FPS. Believe me, making performance improvements was really hard. We simply ran out of time to fix bugs we were aware of.