Recently, our community brought to light an issue with the chaos portal drop rates.
I’ve done my best to succinctly outline the problem, and why no other chests are affected.
There was an optimization added into the code from years ago which would pre-calculate the troops you can get from a chest. Unfortunately, this was not taking into account if a chest had multiple “troop pools” to pick from, such as the case of the Chaos Portals. This means that when the game rolls for a troop of a specific rarity, it was picking from a pool of the treasure troop AND the faction troop, so the odds ended up being different from what is displayed.
Side Note: No other chest in the game offers different pools of troops to give away. Guild Guardians in the Guild chest are not affected by this.
This issue will be fixed by us updating the drop rates in-game to reflect the current numbers. As such, as will be leaving the drop rates as they currently are, but changing the numbers that are incorrect in game.
We cannot promise that an issue like this will never happen again, but we will do our best to ensure it doesn’t. Bugs and mistakes are a reality of game development, and we cannot promise to never have an issue in the future. We wish we could. The best we can do is improve our processes and do our best moving forward.
In the future, the way to raise these issues with us is to use the bug report template with the information you have gathered. I understand that it isn’t the most elegant solution at this point in time, but until we either find a different way to air these concerns or build more in-game tools to help us, this is the best way to inform us of any perceived discrepancies.
I hope that this had shed light on the situation.
(On another side note, We won’t be implementing a guardian style troop drop for factions. I am sorry that this isn’t what you were hoping for.)