Can you escape the 50 room 19

Love these escape room games. One of the best escape room games I've played. A fun game with a mixture of easy and challenging puzzles. I had a slight problem. On level 43 behind the picture on the 3rd floor I had to unlock the wall using 4 numbers. It actually unlocked itself and I couldn't take the object inside so i had to restart the level. Escape room 20 please

Again, in this version you can't watch an ad to get a free hint - it's just disabled. And for the first time, on the level selector, you can't see did you collect the hidden star. Why?? The ideas of the team look exhausted, so I guess Room 20 will be the last game?

Good fun. Im playing on my phone and it can be hard to see some of the details. I found some of the puzzles impossible to figure out, even after using hints I still couldn't see how a player was supposed to solve without using the hints.