Ordering Characterization by amount orders by string not number

[Athunc]

Under Impact Categories, selecting a LCIA Method by double clicking, a list appears to show charecterization factors. When ordering these by "Amount", however, it will order the list based on the string of the amount instead of the actual number.

Example: if ordered from high to low, 9.1 will appear just after 99.5 but far before 444,4. The numbers are not in ascending or descending order.