Since the tweak to OC spawning (where it was corrected to give an equal chance of each possible tier instead of each possible OC in those tiers) it appears to have blocked the ability to spawn Tier 2 OCs?
I just spawned 10 tier 1 OCs in a row, which with a 50% chance of getting a Tier 1 is a probability just worse than 1 in 1000.
(Decided to stop after the 10, as the crimes page was getting clogged up... hence the "it appears to have blocked" as I really could have been just that unlucky)
Can someone please double check the simple OC spawn logic?