Missing Pottery wheel in the Merge coal mine

The bonus game in Merge Academy started with glitches that didn’t save progress in both merge games. It was fixed two days later. I just finished opening all tiles in the bonus games and as I suspected the pieces to make the pottery wheel are missing. I read in the game chat room, I am not the only one missing pieces. In order to collect all rewards you have to buy gems, and this time, there is no way to finish the game. You really need to compensate the people playing because their are a lot of upset people. screenshot to show items are missing.