Which prestige do you mean, the one that gives carry capacity if there is 300+ ores? That is usually happening in later in the game, or when you have too many producers but not enough runners. When the mountain starts reclaiming ores you'll see them getting lifted and sucked into the mountain. If you didn't see it, it probably means you were nicely managing your production with retrieval.
Omg I did a whole playthrough now to lvl 50 with 4 unbuffed runners because I was actually expecting the mountain to at one point swallow all the gems 😂😂😂
Sorry dev I didn't realize that this mechanic is super hard to notice and I legit spammed the whole screen with gems till I realized the mountain sucking is constantly happening in the background of all the gems on the screen.
Thats my conclusion now haha
Yikes 💀☠️
Haha no worries if mountain eats some gems, in the late game with high production it will be happening constantly. Mountain starts sucking when there are 300+ gems on screen (I might add a counter for that) and you can theoretically upkeep collection with production so no gems go to waste but you really don't have to (there's a strategy to keep the pile growing so you can use that ability plus get gems closer etc).