Riverly, you were right, the chests appeared automatically today evening (usually they appear in the morning), so luckily it was just a temporary bug. Yay, it looks like i will get the jewel of my kingdom, the obsessive dream of mine - the butterfly pond.
I wonder how much has improved the visual appearance of new items since last two years - animation, colors and fantasy&talent of CS artists. I wonder if they draw paintings - would be happy to visit a gallery with their works. As i myself cannot draw even a cat, i find the works of CS artists stunning.