Hi Vykri,
Thanks for playing, watched your stream!
As for the first puzzle room; you bring blocks from the previous room which you are not supposed to do.
I did make a fix for that but I removed it later on as the results would confuse the playtesters.
You can solve the puzzle without bringing along the blocks from the previous room which does make it necessary to solve the puzzle.
In the end I made the choice that I would remove the mechanic that stops you from doing so, as to not be disruptive.
It's kind of the same with the 3rd level where you stack the blocks to get the speaker. Playtesters were having a hard time with this so I added in an extra block. That being said you can utilize that extra block to climb the wall without doing all the puzzles if you are an experienced gamer easily.
Happy you finished it though, really liked your game too!