Strange collision between sprite and DynamicLayer

[donfrigo]

Hi all!

I am working on my very first Phaser game and everything has been pretty smooth so far. 

Of course, except for a small bug, that has been bothering me for the last day, namely when I am shooting bullets at a tile wall, the bullets go through and sometimes they collide as expected. I have opened an issue on Phaser Github, with a working codepen and gif. If you guys have any idea what could be the problem, please let me know!

Thanks!