It used to be that every five 8 hr incubators, it would alternate between a 12 hour and 24 hour:
So (3,15m,3,3,8)x5, 12, (3,15m,3,3,8)x5, 24, ad nauseum.
Now it skips every other 24 hour incubator so that 9 or 10 of those sets are between two 12 hour incubators. Is this the new arrangement, or have I been cheated out of some 24 hour incubators? This has happened to me no less than three times, and there’s basically not enough reward to enter the arenas lately.