I noticed a critical game engine bug that popped up in the Playground. Around round ~40 of myAlgo vs myAlgo, one of the rounds “erased” a turn of turret placements. Instead of the game ending in a tie, this game one side a decisive advantage in which the game was no longer mirrored. The side that suffered the bug got its cores, you could see it place its turrets, then it glitched and showed up as 0 cores remaining, 0 turrets placed. Not sure what caused it, doesn’t seem reproducible.
If it was on the playground and only happened one time, it might be very difficult for us to track down. If you provide the Algo ID of ‘myAlgo’ that you used we can investigate a little and see if we notice anything.