After upgrading to r92 I noticed a "stuck on the wall" effect jumping to the left against a solid block when the charachter is falling along the wall and is some pixel above the floor. On Chrome and Firefox it's a subtle stop during the fall that resets gravity effects on charachter, on mobile devices the charachter stucks in middle air until it's moved to the right breaking the whole gameplay.
This doesn't happen always, seems to be totally random.
All is working perfectly when you jump to the right.
Here's the capx
To explain what I mean I added a sound that plays everytime the falling speed is below a threesold. You'll notice that jumping on the left against a wall the sound sometimes is played two times.