Are locks dropping from Spymasters now broken?

In 28 spymasters, I have found 1 lock from them. In that time, I have found 2 from other advanced rooms, Sac Chamber, specifically. Pre-patch, I was getting one every third Spymaster. So many in fact, I left half behind normally.

Did I hit an insanely bad patch of rng or do something change with Hotfix 15?

Same here, almost no medaillon drop in my temple now.

Im starting to suspect medallion drop rates are dynamic and vary on the size of the temple. Just anecdotal but as my temple appraoched 50 rooms it felt like all medallions were dropping less often, 0 - 1 locks per run with 7 spymasters. I couldnt sustain locks at one point and temple is now 30 rooms but medallions are flowing in more than at 50.

Its funny you say it might be due to room size, as I deleted a bunch of rooms to make way for more Spymasters (7 current) and the droprate for locks seems to have increased significantly.