Phasing Glitch

[AnErrorOccured]

The Phasing Glitch is that when an object phases through an object it isn't supposed to go through, and teleports to the other side without intent, with the "L" block, I was apparently going too quick for the game, and instead of being 3 tetrimino blocks, it turned into a shape that looked like this :
"= "
= =
and the other block went to the other side.
This is usually an HTML Glitch, so no stress, I know it is fixable however, I did code a HTML Tetris with the glitch fixed, but it was on my previous computer that had unfortunately, had the HDD/SSD fried, but whenever I find the Phasing Glitch Code again, I'll be sure to contact you or edit this Error Report!