Any way to force reset of chests in the Lost Realm?

I usually have lots of Bronze keys, and no Silver or Gold key, yet "stuck" with silver/gold chests that appear often.
I know the chests reset themselves every 2 hours, but is there a way to force reset (presumably by paying Gems), like we can reset other things e.g. Trade Shop?
I tried long press a chest, looking for some hidden menu... to no avail.
Best Answer
I know it is rather old question, and it is rather comment than an answer ( I cannot comment, yet). I am not sure what might you had at the time but I am assuming quite low. From my experience (over 160k might) the key issue will change by 180 degrees. I have a lot of gold and silver keys but barely bronze...
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