I think this is definitely my favorite game from the jam!
It looks and sounds clean and polished, fits the minimalistic them, runs smooth, has a lot of small details, it got a problem-solving aspect, the skill and speedrun aspect, cool and unique gameplay concepts (like the warping), and the different game mechanics are cleverly presented to you!
During my playthrough, I did not encounter any issues! Just to say something in addition to the praises (XD) I point out the only tiny ones (the first literally tiny, at 1-2 pixel scale XD): 1) the text "STX: ..." has like 1-2 pixel cut from the top (the fact that I'm writing this makes it clear how well this game was made); 2) (this is can be intended and most probable you already noticed) the player-block can snap in a quite strange way on the activated/inactivated platforms if player-block is crossing the platform in the activation moment (the snap stood out because everything else is so smooth)
Really nice job! Keep up the great work!