So, I have the first Sophon quest, and I select the scientific objective of orbiting two systems in another constellation. I've been to several systems outside of my home constellation (not isolated systems, systems in a different constellation entirely) and I've only manged to progress the quest to saying I've visited one system? Am I doing something wrong? Has anyone else run into this issue?

IIRC from last time I did this branch (was still in EA) you need to orbit two different constellations and was enough to orbit one system in each constellation.

Actually doing the militarist most of times, so can't say if they changed.

I don't remember if the systems had to be in separate constellations, but it was two systems. I completed the quest last night by sending a scout to a single isolated system. I had sent probes to other constellations, but I had definitely not orbited them with ships. Seems like it might be a bug?