This is a known issue, on some computers it works on others it doesn't. I discovered it only after the time was over as the ones that were playtesting it had no issues. I have no idea why.
Did you download the 32bit or 64bit? On my system the teleporters work in the 64bit but not in the 32bit.
I almost beated the whole game, but at one of the last levels the teleporters didn't work. Overall a had a good time playing Dice Adventure. Congrats on your submission