I think I've found a bug with the "Multiply Points when Activated" and "Divide Points when Activated" functions. It seems they multiply the current score, is this intended? I would have expected the formula to be:
(sum of points gained) X (product of multipliers) X (sum of points used)
I wanted to use the multiplier as a difficulty setting (get more points in Easy and less in Hard) but it didn't work as expected.
From what I understand, points are summed or multiplied depending on the order they are activated which has some strange results in some cases like here where addition and multiplication is intermixed.
Another bug I have noticed is that choices with the increment/decrement button aren't saved in the export string.