Yea.. having two items of frozen doesn’t freeze creeps anymore. If you ever have all four pieces and you’re certain a minute has passed then remove all the pieces for a second and put it back on.
Sorry for the late reply - I've been on vacation the last month! This bug will is fixed with the next version (Dawn of Light in December). Currently sets are not working reliable. @MayorJohnTory that's the current workaround, yeah. Sorry about that!
Well I played 300 rounds and tested some sets...it feels like none of the set effects were active. On withered, not a single unit was backintime, on frozen, I couldnt sacrifice (not even sure about the slow. But the lightsaber worked at last...(+1 inventory)
@diijay, I had a look at the testcases and the code, sets should work as expected. Did you equip different items of the set? For example, two frozen books will NOT trigger the frozen effect, it must be two different items of the set.
@andy: wasn't aware that you have to use different items from the set. Is this the case for every set?