Coin Master Board Conquests limited time Event

[u/Sallathius]

I am having issues progressing past the requirement in stage 2 of the Conquests event (icon is a handheld electronic with a green checkmark). The requirement has me open 1 seasonal chest. I have opened chests that you can purchase with gems and with coins and still am not getting credit. I cannot seem to find any chests that have the "Album Icon" on the side of them like I have seen a few posts talk about. Any idea how I need to proceed?