Hi, at least in the current and previous LMTX beta, the paper size gets
reduced if I use cropoffset as well as \setupinteractionscreen.
(It is known that the PDF box settings only work with the latter.)
In the MWE below, paper size gets reduced by cropoffset:
If I set:
Then the resulting paper size is A4, because the "oversized" factor is
nulled by the crop offset.
While I can work around this "feature", the behaviour is different from
earlier versions. Can’t check with MkIV, since that doesn’t work any
more, as reported by Pablo et al.