I opened an empty chest yesterday, that was my only problem. There are plenty of days to get all the items so I was not too worried about it.
I was also having a bug for that...
Opened the chest, got some coins and thats it..
Have a look at the vid: https://youtu.be/RA5hV7rztaY
I have the feeling, that there is lot bugs in the game nowdays?!?
Case 2- Opened 2 Infinity Packs- got consumables for 200k coins... And then the packs dissapeared from shop. WFT - Thats not normal. I want my 400k coins back!
i know im kinda late and the event is over but if you didn't get a sticker after opening the chest you were likely to get one but it didn't show up. if you go searching for it in the stickerbook you should eventually find the cosmetic you should have seen when you opened the chest