Rounding .15 in KNIME results in .1 instead of .2

Hello,

That is really strange, but it looks like KNIME rounds numbers incorrectly

I've tried both math node and round double node, 

In math node I use: round($column1$,2)

And in round double I use half-up and precision 2 decimal places.

Do you know why does this happen? At the moment I have to add 0.0000001 to every number to make the rounding work which is quite painful on big datasets.

Any help will be greatly appreciated.