Usually, new Souls get added to an existing <99 Soul stack, rather than starting a new stack. This is nice, because it facilitates redeeming multiple Souls at a time, which maximizes Sacrifice efficiency, especially when a roster is full. (I can explain what I mean by efficiency if needed.)

However, it appears that new Souls that come from Fragments don't follow this convention and instead begin a new stack.

Devs - would it be possible to change that?