Lock Medallions in temple

I just lost half my second chain due to insufficient locks drops. I went from having a safe stash of 6, to zero. Out of the last 8 or so runs, my spymasters have dropped zero locks. and tbh i am not even sure they are dropping any medallions. Something has happened, as for this to be rng, it would be one of the worst runs of bad luck ever. The few locks I have gotten have come from soul core chambers. I have been seeing reports of this happening to a fair number of people. Please fix. I have dumped somewhere between 100 and 200 hours into getting my temple up, (77 room maxed, literally just finished this weekend) with 12 spymasters, and I am now in danger of losing my temple entirely.