Hi! I just finished the game but those 2 achievements did not unlock. Is it possible I missed some puzzles?

Loved the demo and look forward to the full game....surprising that not more folks are commenting on this great little gem !

I have trouble with pushing puzzles when there's so many moving parts. Can someone tell me the first few moves? It's the only puzzle that's accessible to me because I solved all the rest. https://v1.steam.hlxgame.cc/sharedfiles/filedetails/?id=2435262527...

I downloaded the new demo since it was mentioned that it was updated. I tried the earlier demo a few months back, and it looked just fine. If the game is blurry as well then I'm not going to buy the game. This guy seems to have had the same problem: https://v1.steam.hlxgame.cc/sharedfiles/filedetails/?id=2423623202...

Every time I try to open the game on Steam, I get this error: "“Altered” will damage your computer. You should move it to the Trash. This file was downloaded on an unknown date." I couldn't find a support email anywhere. Are the devs aware of this issue?...