Btw, why would you want to replay finished levels? It is better to go next level every time, is it not?
To get more AP to get better advancements to better clear the later levels. Especially if you redo the level BEFORE the next tweak & rebalance happens, you have the advantage of knowing where things are so can finish it with better efficiency.
I finished most levels 2-3 times. Though as the tweaks continue, clear time is getting longer and longer, so this is quickly becoming less sustainable/tolerable.