Node position not round

I think there is a bug in the last versions of G2.

I am working on an Italic, which has been slanted extra and made more wide. I did this in UFOstretch. After importing/opening the UFO’s every runs fine.

Now I want to clean up the typeface. When I add extremes and/or Round Coordinates using the menu, nodes are not always positioned on rounded values.

I send a screenshot of one of the situations by mail.

what is in Font Info > Other Settings > Grid/Subdivision?