In recent versions the support material isn't generated correctly:
Version 1.1.7 generates correct support:
example STL, config files, gcode:
Interesting, thank you for that report.
I was just writing a new issue on this - but seems like this one covers my findings already.
I'd like to add that the misalignement affects rectilinear as well as rectilinear grid support structures
Fixed regression causing rectilinear infill to be misaligned across l…
Fixed, thank you!