Trial of Sek key drops from sacred water exchange gave unusable keys

I found 2 gold keys in run, there were 2 gold boxes in rewards.

I opened those before turning in sacred water- got 2 more gold keys for a big water haul. BUT there were no boxes for those keys, and they ONLY were able to open gold boxes so I just lost all the benefit of that effort.

Can we PLEASE either have manual trade in for the keys we can use, or allow higher tier keys to be used on lower tier boxes so that a really good run's reward isn't negated by auto turn in key gen?