Weights assigned to powers while they were up for selection seemed to get saved to the wrong/other weights. The edit box would also often start pre-populated with a different weight than the last one I assigned to the power.

Example:

1. I click on an anima power cell.
2. I evaluate the left most power "Big Arrow" as S-Tier. I enter S into the edit box, save it, and see it change to S.
3. Later I encounter another power cell, and click on it.
4. "Big Arrow" is back, but it displays as D tier, which I never assigned to it.
5. When I click on the Edit box, it shows C tier. (It is possible that C is left over from the last value I assigned to some other power, I'm not 100% sure. I'd expect it to be the current value for the power I'm editing in any case.)

Version: 2.5.3

I can confirm this bug.

I use weight 1-100, filled out most of the powers, but it reverts, changes value randomly to another power's value, etc...

ie:

1. I get PowerA + B + C and give it 50 - 20 - 100
2. I get PowerC and it shows 100
3. I get any other combo (say D + A + E)...
4. A most of the times won't have 50 carried over, instead will show some other value from another power

As Brucek2 mentioned in #5 - I am 100% sure it mixes up values from other powers.