Game suddenly switches to another screen right after I win

This has happened to me more than once. I just finished level 6136 that I've been working on for a while. I finally get the last fruit to drop. All of the checkmarks go up and say I've completed it and then suddenly my screen switches to another screen like I've clicked on something and when I return it doesn't give me credit for that win and starts me over at the beginning. It's completely infuriating . The game obviously noted that I'd collected all of the required characters, so why does it default to no win? There are so many little details like this like suddenly when I'm about to be able to create a candy I need like a striped candy, I make the move and the game just acts like it wasn't that type of move and doesn't award the candy. I know the game is rigged to get people to spend money, but if you actually pass a level you should get credit for that.