This is replicatable in every single game, and it's one of these bugs I tend to only notice rarely, but on the HUD, among the six different comparative graphs down on the bottom of the screen, the one for "Mana" hasn't worked or apparently done anything useful since the change to global mana.
It displays a collection of perfectly level lines at seemingly random heights for each empire.
It's rather weird, though I suppose it could be fixed to track either each faction's current amount of mana generation or the total amount in their pool. (which would be more in line with how it used to work)
It doesn't at all surprise me that nobody else has noticed this one, as it's been around for a long while and only just now did I remember to actually say something about it. It's kind of just... hidden in plain sight.
