Thanks for the save file.
The temporary section creation was disabled in v0.1.6 for cases when a section has only 1 valid planet.
Shattered Planet, Solar System Edge are not valid planets for import and thus are not parsed by the mod.
Meaning, as far as the the mod knows - you're only importing from a single planet and there is no need to create temporary section.
RN what happens is the mod tries to set import_from filter to correct location for items in the section, but it is immediately overridden by Logistic Group Combinator.
FAQ kind of explains why temp section works as it is. You can add other valid planet that your platform does not visit (like Aquilo) to force temp section creation as a workaround.
Compatibility with Logistic Group Combinator is a whole other question. I think there is nothing to be done on the Planet Request Group side.