G4: Transformations export filter problem

Glyphs
1

Transformations filter doesn’t seem to work as an export filter. I want to shift some glyphs vertically, but nothing changes on export.

{
customParameters = (
{
name = Filter;
value = "Transformations;OffsetY:250;Origin:0;";
}
);
}

2

Can I get some help on this?

BTW, transformations as an export pre-filter does work.