FactBox wrong font size or line height

Hello good people!

I'm having a very strange issue on Pages Factboxes.

Some of them have what seems to be a too low line height or a too big font size.

The most strange thing is that the same factbox on two different pages have different looks!!??

Please, see it:

The FactBox has exactly the same properties at P21 and P22, it is the same object, BUT one looks ok and the other not!

I have this problem at several factboxes :(

Any clue?

Thanks!!