when 2 pieces are put together but not in the correct place, it duplicates the pieces and makes them unmovable

As I connect pieces, the pieces are duplicating themselves. This is in the 60-color-piece mode.

So I can't actually get the game to begin. I get to what looks like a title screen in a sort of hallway with a iphone to one side showing an ad for the main hidden cats games, and I have an active mouse cursor. But nothing on the screen is responsive except for the phone. If I click on that, I get taken to the Steam page to buy the cat games (which I already own). But I can't click on anything else and get a response. Has anyone else encountered this problem? Am I missing something obvious?...

There's a visual bug that as you place the pieces the image changes into a bugged one, making impossible to complete. London palace 240 black and white is also bugged (this one I completed by placing the pieces out of the "table").

Only the 60 piece puzzle shows colour when you choose the coloured pieces. Both the 120 and 240 puzzles go to the white pieces when choosing coloured. There are sufficient people with regular eyesight having problems with white on white, but I am legally blind and find it impossible to decipher the squiggles on the top outside row which I think are trees. The rest I can slowly work out, with a bit of trial and error. I should imagine other vision impaired players would simply give up, let alone those who c...